Name: Matthew J. Thornton (not to be confused with this Matthew Thornton who signed the Declaration of Independence)
DOB: September 15, 1976
From: Three Rivers, Michigan
With the Nats Since: August 5, 2014 when the Nationals selected him off waivers from the New York Yankees
Just Who Is This Guy?: Thornton is a former all-star reliever (2010 All-Star) who has been in the league, mainly the American League, for the last 11 seasons. He’s pitched a total of 655 games, logging a 32-45 record with a 3.48 ERA. Thornton spent the majority of his playing career with the Chicago White Sox but has also played for the Seattle Mariners, Boston Red Sox and New York Yankees.
During the 2004 season, Thornton made his major league debut at the age of 27 with the Mariners. He threw four innings of scoreless ball, struck out one and gave up three hits and walked one batter. He finished the 2004 season with a 1-2 record and a 4.13 ERA in 32.2 innings.
Thornton was traded to the Chicago White Sox on March 20, 2006 and performed during his tenure with the White Sox. From 2006-2012, he logged 435.1 innings, going 31-32 with a 3.25 ERA, 2.91 FIP and struck out 465 batters. During his All-Star season, Thornton threw 60.2 innings, generating a 5-4 record with a 2.67 ERA, 2.41 FIP and 81 strikeouts. He also had eight saves that season.
According to Brooks Baseball, Thornton heavily uses his fourseam fastball that tops out around 96 mph. He also throws a sinker (96 mph) a lot, and tends to throw a 90 mph change and an 84 mph curveball.
What Happened in 2013: On July 12, 2013, Thornton changed the color, being traded from the White Sox to the Red Sox. In 40 games with the White Sox before the trade, he posted a 3.86 ERA in 28 innings. He struck out 21 and issued 10 walks. With the Red Sox, he appeared in 20 games and struck out nine in 15.1 innings.
While the Red Sox won the 2013 World Series, Thornton injured his oblique in August and never fully recovered before the season was over and was left off the postseason rosters.
On November 2, 2013, the Red Sox granted Thornton his release, allowing him to sign with any team.
What’s happening in 2014 so far?: On January 10, 2014, the Yankees penned Thornton to a two-year, $7 million deal to help bolster their bullpen. However, the Yankees decided that with the emergence of other, cheaper bullpen arms such as Dellin Betances and Adam Warren, mixed with his expensive contract, Thornton was expendable.
Thornton was actually putting together a solid season for the Yankees before the waiver claim, posting a 2.55 ERA in 46 games. He had 20 strikeouts and six walks in 24.2 innings. With the Nationals, he has appeared in three games as of August 13, 2014 and pitched 2.2 innings with a 0.00 ERA and a strikeout.
The addition of Thornton makes one of the best bullpens in baseball even more dominant. He can get batters out on both sides of the plate – right-handed batters have a .255 average against him while lefties have a .254 average against him. Thornton’s experience and veteran leadership will be valuable to the Nationals down the stretch and allow them to give some of their oft-used bullpen arms a much needed break to gear up for the postseason.