Matt Thornton

Matthew J. Thornton (born September 15, 1976), is an American former professional baseball pitcher.

Born in Three Rivers, Michigan he grew up and attended high school in Centreville.

He played in Major League Baseball (MLB) for the Seattle Mariners, Chicago White Sox, Boston Red Sox, New York Yankees, Washington Nationals, and San Diego Padres.

Thornton is second all-time in American League history in holds (182).

In the 1995 MLB draft, Thornton was drafted by the Detroit Tigers in the 27th round (742nd overall) but chose not to sign with them.

Thornton played college baseball for Grand Valley State University and was drafted by the Seattle Mariners in the first round (22nd overall) of the 1998 MLB draft.

Thornton made his professional debut with the Single-A Everett AquaSox in the Northwest League, recording a 27.00 ERA in two games.

In 1999 and 2000, Thornton was a starting pitcher with the Single-A Wisconsin Timber Rattlers in the Midwest League, and showed improvement with his ball control and accuracy, striking out nearly one batter per inning.

In 2001, Thornton had a breakout year for the Single-A San Bernardino Stampede in the California League, where he posted a 14–7 record in 27 starts, along with a stellar 2.52 ERA and 192 strikeouts in only 157 innings pitched.

Thornton was then promoted to AA baseball and played with the San Antonio Missions of the Texas League in 2002.

Thornton, still a starting pitcher, pitched well, making 12 starts and going 1–5 with a 3.63 ERA and 44 strikeouts in 62 innings pitched.

In 2003, Thornton was briefly sent back down to High-A ball with the Inland Empire 66ers of the California League, but was quickly promoted back up AA ball with the San Antonio Missions again.

He started only four games, but posted an incredible 0.36 ERA, with a 3–1 record, gave up only eight hits in 25.1 innings of work and struck out 18 batters.

His performance got him promoted that same year to AAA ball with the Tacoma Rainiers in the Pacific Coast League.

Thornton had a shaky start to his career in Triple-A ball, starting two games and posting an 0–2 record and an 8.00 ERA.

Thornton stayed with the Tacoma Rainiers in 2004 and posted a 7–5 record in 16 games (15 starts), along with a 5.20 ERA and 74 strikeouts in 83 innings pitched.

Thornton made his MLB debut on June 27, 2004, with the Mariners in a game against the San Diego Padres, pitching brilliantly over four innings, only allowing three hits and striking out one batter.

Throughout the season, the Mariners used Thornton for mostly middle reliever duty, except for one game on July 10, when he started on against the Chicago White Sox.

He pitched five innings, allowing four runs on three hits and walking seven batters in a loss.

Thornton finished the 2004 season with a 1–2 record and 4.13 ERA in 19 games (one start), striking out 30 batters in 32.2 innings of work.

In 2005, Thornton served his reliever duties, pitching in 55 games and going 0–4 with a 5.21 ERA.

He struck out 57 batters in 57 innings pitched.

On March 20, 2006, Thornton was traded from the Seattle Mariners to the Chicago White Sox in exchange for outfielder Joe Borchard.

Under the tutelage of pitching coach Don Cooper, Thornton emerged as a dominant bullpen force.

In the 2006 season, Thornton appeared in 63 games, going 5–3 with two saves and a 3.33 ERA.

Thornton's 2007 season was a little busier, as he made 68 relief appearances with a 4–4 record, two saves and a 4.79 ERA.

Thornton made 74 appearances out of the bullpen in 2008, going 5–3 with one save and a 2.67 ERA.

From 2008 to 2013, Thornton pitched in more games than any other left-handed reliever.

He also holds the record for most holds with a single team, with 164 for the White Sox.

Thornton made 70 appearances in 2009, going 6–3 with four saves and a 2.74 ERA.

Thornton was selected by the coaches' vote to the American League All-Star team in 2010, the first All-Star selection of his career.

In 2010, he made 61 appearances, going 5–4 with eight saves and a 2.67 ERA.

Appearing in 62 games in 2011, Thornton went 2–5 with three saves and a 3.32 ERA.

2012 was somewhat unlucky for Thornton, as his loss column led all relievers in baseball.

He went 4–10 with three saves and a 3.46 ERA in 74 relief appearances.

Thornton made 40 appearances for the White Sox to start the 2013 season, going 0–3 and a 3.86 ERA.

In 512 career relief appearances with the White Sox spanning 463.1 innings, Thornton compiled a 3.28 ERA.

As of September 12, he led all eligible American League relievers with 12.3 strikeouts per nine innings.

On July 12, 2013, Thornton was traded to the Boston Red Sox for minor league outfielder Brandon Jacobs.

The Red Sox also received cash considerations.