Javier Alfonso López Palmer (born July 11, 1977) is a Puerto Rican former professional baseball pitcher. He pitched in Major League Baseball (MLB) for the Colorado Rockies (2003–05), Arizona Diamondbacks (2005), Boston Red Sox (2006–09), Pittsburgh Pirates (2010), and San Francisco Giants (2010–16). He was a left-handed specialist known for his sidearm delivery. He is currently a member of the Giants broadcast team, working alongside Dave Flemming as color commentator for their away games.
López attended the University of Virginia, earning a degree in psychology despite leaving early to begin his baseball career. In 1997, he played collegiate summer baseball with the Falmouth Commodores of the Cape Cod Baseball League. He was selected by the Arizona Diamondbacks in the fourth round of the 1998 Major League Baseball draft. He began his career as a starting pitcher but struggled, and was converted into a sidearm (or submarine) reliever while still in the Diamondbacks' organization. Before the 2003 season, he was selected by the Boston Red Sox in the Rule 5 draft, but was traded to the Colorado Rockies during spring training. He spent all of 2003 on Colorado's roster, nearly tying the franchise record for most consecutive batters retired and finishing third among major league rookies in games pitched. He struggled the next two seasons, getting claimed off waivers and later sent to the minors by Arizona in 2005. In 2006, he signed with the Chicago White Sox but failed to make the team and spent the first part of the season in the minors before getting traded to Boston during the year.
López served four stints with Boston in 2006. In 2007, he had three different stints but appeared in 61 games, posting a 3.10 earned run average (ERA). He posted a 15.43 ERA in the playoffs but won his first World Series ring as the Red Sox defeated Colorado in four games. In 2008, he spent the entire season on a major league roster for the first time since 2003. He posted a 9.26 ERA in his first 14 games of 2009 before getting sent to the minors for the rest of the season. In 2010, he signed with the Pittsburgh Pirates but was traded to the San Francisco Giants during the season. He had, at that time, his best ERA that year (2.34) and won another World Series as the Giants defeated the Texas Rangers to win their first World Series since 1954. In 2011, López was one of two major league relief pitchers to throw at least 50 innings without giving up a home run. He won his third World Series in 2012 as the Giants defeated the Detroit Tigers in four games. In 2013, López posted a then career-best 1.83 ERA. He won his fourth World Series in 2014 as the Giants defeated the Kansas City Royals in seven games. López announced his retirement on February 8, 2017.
Early life Javier Alfonso López Palmer was born on July 11, 1977, in San Juan, Puerto Rico. López grew up in Fairfax, Virginia. He and his wife, Renee, attended Robinson Secondary School in Fairfax, Virginia. Growing up, his dream was to be an FBI agent like his father.
College career López went to college at the University of Virginia (UVA) and played for the Virginia Cavaliers baseball team. Through June 2022, he was one of 38 former UVA players to have made it to the major leagues, along with Mark Reynolds and Ryan Zimmerman among others. While playing at UVA, he went 12–9 with a 6.30 earned run average (ERA). As a hitter, he had a batting average of .319, 15 home runs, and 71 runs batted in (RBI). However, while still at UVA, he discovered that pitching was most likely to get him to the major leagues. Despite leaving college after only three years to play professional baseball, López continued working on his degree in psychology, which he earned in 2002 to fulfill a promise to his father-in-law. He also said, "I had done three years at a great university. I figured I should finish."
Professional career Draft and minor leagues After three seasons at UVA, López was drafted by the Arizona Diamondbacks in the fourth round of the 1998 Major League Baseball (MLB) Draft. He began his minor league career as a starting pitcher for the South Bend Silver Hawks of the A Midwest League. In 16 games (nine starts), he had a 2–4 record, a 6.55 ERA, 31 strikeouts, and 30 walks in 44 innings pitched. He remained at South Bend in 1999, posting a 4–6 record, a 6.00 ERA, and 70 strikeouts over 99 innings pitched in 20 starts. In 2000, López was promoted to the High Desert Mavericks of the A-Advanced California League. In 30 games (21 starts), he had a 4–8 record, a 5.22 ERA, 98 strikeouts, and two saves in innings.
In 2001, deciding that he would not be able to reach the major leagues as a starter, López converted to a submariner and moved to the bullpen. He said, "I don't know if that was desperation as much as it was admitting failure." He began the season with Arizona's A-Advanced affiliate, which was now the Lancaster JetHawks. In 17 games, he had a 1–3 record, a 2.62 ERA, 18 strikeouts, and one save in 24 innings pitched. He was promoted to the El Paso Diablos of the AA Texas League that season, where he had a 1–0 record, a 7.42 ERA, 21 strikeouts, and 40 innings pitched in 22 games (one start, his last professionally). In 2002, he played in 61 games for El Paso as a reliever, allowing only a .204 opponent batting average. That year, he went 2–2 with a 2.72 ERA, 47 strikeouts, and six saves in innings.
In December 2002, the Boston Red Sox selected López in the Rule 5 draft, intending for him to compete for a role as a left-handed specialist in the Red Sox' bullpen. However, on March 18 he was traded to the Colorado Rockies for a player to be named later (Ryan Cameron).
Colorado Rockies (2003–2005) 2003 López made the roster and made his MLB debut for the Rockies on Opening Day in 2003, pitching a scoreless inning in a 10–4 loss to the Houston Astros. He got his first major league strikeout in his next game on April 5, punching out Tony Womack in a 4–3 victory over the Diamondbacks. On April 10, he got his first win, pitching scoreless innings in a 7–6 victory over the St. Louis Cardinals. He posted an 0.72 ERA, which led all NL relievers, in his first 30 games through June 8, posting an innings scoreless streak at the end of that run. However, his ERA jumped up to 3.16 on June 12, when he allowed seven runs in of an inning in a 15–3 loss to the Minnesota Twins. From July 31 through August 16, López almost tied a franchise record by retiring 18 straight hitters over the span of 17 days, but he fell short of the record of 21 set by Darren Holmes in 1996 when he intentionally walked Jason Phillips in a 13–4 loss to the New York Mets. On August 12, he recorded his first career save by pitching a scoreless 11th inning in a 6–3 victory over the Montreal Expos. He played in 72 games, the third-most among rookies in the major leagues, trailing only Óscar Villareal (86) and Brad Lidge (78). He had a 4–1 record, a 3.70 ERA, and 1 save.
2004 López started off poorly in 2004, going 0–2 with a 9.93 ERA in 46 games by mid-season. He was then sent down to the AAA Colorado Springs Sky Sox of the Pacific Coast League on July 18. While in AAA, he went 0–1 and had a 4.00 ERA in eight games. He was called back to the majors on August 10 to replace an injured Aaron Cook and played the rest of the season in Colorado. He pitched better the rest of the season, allowing only two runs for a 1.54 ERA in his final 18 games. In 64 games, López had a 1–2 record, a 7.52 ERA, 20 strikeouts, and no saves in innings.
2005 López began 2005 with the Rockies, but after allowing five runs in his first three games (for a 22.50 ERA), he was optioned to Colorado Springs on April 11.
Arizona Diamondbacks (2005) Before he could appear in any games with Colorado Springs, López was claimed off waivers by the Arizona Diamondbacks on April 14. Due to major league rules, Arizona was unable to call him up until April 24. He had another poor season, having a record of 1–1 and an 11.02 ERA, the highest in the majors among relievers who made at least 30 appearances. On July 5, López was designated for assignment to make room on the roster for Armando Almanza. He cleared waivers and was sent down to the Tucson Sidewinders of the Pacific Coast League for the rest of the season. He went 0–1 with a 2.22 ERA. On October 15, he was granted free agency.
Chicago White Sox López signed a minor league deal for the Chicago White Sox in 2006. He competed with Boone Logan for the role of left-handed specialist, but Logan won the role, and López was sent to AAA to begin the season. Playing for the Charlotte Knights of the International League, he went 2–1 with 12 saves and an 0.55 ERA in 26 games.
Boston Red Sox (2006–2009) 2006 On June 15, 2006, López was traded to the Boston Red Sox for David Riske. He posted a 4.32 ERA in 14 appearances before getting sent to the Pawtucket Red Sox of the International League on July 17 because it was too "tough" for the Red Sox to carry a left-handed specialist at that point in the season, according to manager Terry Francona. He was called up for two short stints from July 28 through August 1 and from August 20 through 22, appearing in one game each time. On September 4, he was recalled for the remainder of the season. In 11 September outings, López allowed only one run. He finished the year going 1–0 with a 2.70 ERA in 27 games. With Pawtucket, he had no record and a 4.86 ERA in 13 games ( innings).
2007
López made the Red Sox' Opening Day roster in 2007, but after four scoreless outings he was optioned to Pawtucket on April 9 to make room for Mike Timlin, who had started the season on the disabled list. He was recalled on May 11 when Devern Hansack was sent down. On this stint, he posted a 3.18 ERA in 40 appearances before getting sent down on August 5 to make room for Curt Schilling, who was returning from the disabled list. With the Red Sox about to face several tough left-handed hitters in late August, Jon Lester was sent down on August 23 to make room for López on the roster.
In 2007, López made 61 appearances, posting a 2–1 record with a 3.10 ERA in innings. Despite his three stints in the minors, his 61 appearances ranked second on the club to Hideki Okajima's 66. He made 17 appearances for Pawtucket, going 2–1 with a 3.78 ERA. López was a member of the playoff roster for the Red Sox, posting a 15.43 ERA but winning his first World Series as the Red Sox swept the Rockies in four games.
2008 On January 18, 2008, López agreed to a one-year contract with the Red Sox for $840,000, avoiding the arbitration process. In 2008, López spent the full season on a major league roster for the first time since his rookie year. On June 6, he threw a career-high three innings, allowing no runs in an 8–0 loss to the Seattle Mariners. In 70 games, López had a 2–0 record, a 2.43 ERA, and 38 strikeouts in innings pitched. He had the fifth-lowest ERA among major league left-handed relievers and appeared in the fifth-most games of AL left-handers. He had the second-lowest ERA among Red Sox pitchers in 2008.
López made the playoffs for the second year in a row as the Red Sox won the AL Wild Card. He made one appearance in the AL Division Series (ALDS) against the Los Angeles Angels of Anaheim, taking the loss in Game 3 after giving up a game-winning, twelfth-inning single to Erick Aybar. That was Boston's only loss of the series, as they defeated the Angels in four games. He made two appearances in the AL Championship Series (ALCS) against the Tampa Bay Rays, allowing no runs as the Red Sox were defeated in seven games.
2009