AP Photo 3 days ago

Edwin Jackson, a top newcomer into the Washington Nationals pitching crew, runs before the official start of baseball spring training, Friday, Feb. 17, 2012, in Viera, Fla. The first pitchers and catchers workout is set for Feb. 21.

AP Photo 3 days ago

Edwin Jackson, left, a top newcomer into the Washington Nationals pitching crew, walks a practice field before the official start of baseball spring training, Friday, Feb. 17, 2012, in Viera, Fla. The first pitchers and catchers workout is set for Feb. 21.

AP Photo 3 days ago

Edwin Jackson, left, a top newcomer into the Washington Nationals pitching crew, throws a bull pen session before the official start of baseball spring training, Friday, Feb. 17, 2012, in Viera, Fla. The first pitchers and catchers workout is set for Feb. 21.

AP Photo 3 days ago

Edwin Jackson, left, a top newcomer into the Washington Nationals pitching crew, squats as he plays catch with a teammate before the official start of baseball spring training, Friday, Feb. 17, 2012, in Viera, Fla. The first pitchers and catchers workout is set for Feb. 21.

Getty Images 1 month ago

MILWAUKEE, WI - OCTOBER 16: Edwin Jackson #22 of the St. Louis Cardinals throws a pitch against the Milwaukee Brewers during Game Six of the National League Championship Series at Miller Park on October 16, 2011 in Milwaukee, Wisconsin.

Getty Images 3 months ago

ARLINGTON, TX - OCTOBER 23: Edwin Jackson #22 of the St. Louis Cardinals is removed from the game by manager Tony La Russa in the sixth inning during Game Four of the MLB World Series at Rangers Ballpark in Arlington on October 23, 2011 in Arlington, Texas.

Getty Images 3 months ago

ARLINGTON, TX - OCTOBER 23: Pitching coach Dave Duncan visits Edwin Jackson #22 of the St. Louis Cardinals on the mound during Game Four of the MLB World Series against the Texas Rangers at Rangers Ballpark in Arlington on October 23, 2011 in Arlington, Texas.

Getty Images 3 months ago

ARLINGTON, TX - OCTOBER 23: Edwin Jackson #22 of the St. Louis Cardinals pitches in the second inning during Game Four of the MLB World Series against the Texas Rangers at Rangers Ballpark in Arlington on October 23, 2011 in Arlington, Texas.

Reuters Pictures 3 months ago

Texas Rangers' Ian Kinsler breaks his bat on a pitch from St. Louis Cardinals starting pitcher Edwin Jackson (R) and grounds out in the first inning in Game 4 of MLB's World Series baseball championship in Arlington, Texas October 23, 2011.

Getty Images 3 months ago

ARLINGTON, TX - OCTOBER 23: Edwin Jackson #22 of the St. Louis Cardinals wipes his brow in the first inning during Game Four of the MLB World Series against the Texas Rangers at Rangers Ballpark in Arlington on October 23, 2011 in Arlington, Texas.

Reuters Pictures 4 months ago

St. Louis Cardinals pitcher Edwin Jackson, catcher Gerald Laird and second baseman Nick Punto (L to R) look up into the stands before the start of Game 3 of MLB's World Series baseball championship against the Texas Rangers in Arlington, Texas, October 22, 2011.

Getty Images 4 months ago

ST LOUIS, MO - OCTOBER 20: Edwin Jackson #22 of the St. Louis Cardinals warms up in the bullpen as pitching coach Dave Duncan (top) and bullpen coach Derek Lilliquist look on (R) prior to Game Two of the MLB World Series against the Texas Rangers at Busch Stadium on October 20, 2011 in...

Getty Images 4 months ago

MILWAUKEE, WI - OCTOBER 16: (L-R) Catcher Yadier Molina #4 and starting pitcher Edwin Jackson #22 of the St. Louis Cardinals walk across the field from the bull pen for prior to the start of Game Six of the National League Championship Series against the Milwaukee Brewers at Miller Park...

AP Photo 4 months ago

St. Louis Cardinals' Edwin Jackson waits to take batting practice before Game 6 of baseball's National League championship series against the Milwaukee Brewers Sunday, Oct. 16, 2011, in Milwaukee.

AP Photo 4 months ago

St. Louis Cardinals pitcher Edwin Jackson responds to a question during a news conference, Saturday, Oct. 15, 2011, in Milwaukee. The Milwaukee Brewers are scheduled to host the Cardinals in Game 6 of baseball's National League championship series on Sunday.

AP Photo 4 months ago

St. Louis Cardinals' Edwin Jackson avoids an inside pitch from Milwaukee Brewers starting pitcher Shaun Marcum during the fourth inning of Game 2 of baseball's National League championship series Monday, Oct. 10, 2011, in Milwaukee.

Getty Images 4 months ago

ST LOUIS, MO - OCTOBER 05: Starting pitcher Edwin Jackson #22 of the St. Louis Cardinals pitches in the first inning against the Philadelphia Phillies in Game Four of the National League Division Series at Busch Stadium on October 5, 2011 in St Louis, Missouri.

AP Photo 5 months ago

St. Louis Cardinals pitcher Edwin Jackson delivers during the first inning of a baseball game against the Pittsburgh Pirates in Pittsburgh on Wednesday, Sept. 14, 2011. The Cardinals won 3-2.

AP Photo 5 months ago

St. Louis Cardinals' Edwin Jackson, left, is safe at first for a single as Atlanta Braves first baseman Freddie Freeman takes the throw during the third inning of a baseball game on Friday, Sept. 9, 2011, in St. Louis.

AP Photo 5 months ago

Cincinnati Reds' Juan Francisco (25) is tagged out by St. Louis Cardinals starting pitcher Edwin Jackson, left, while trying to score from third on a wild pitch as catcher Gerald Laird looks on during the fourth inning of a baseball game on Sunday, Sept. 4, 2011, in St. Louis.

AP Photo 5 months ago

St. Louis Cardinals' Edwin Jackson hits a run-scoring single during the fifth inning of a baseball game against the Milwaukee Brewers Tuesday, Aug. 30, 2011, in Milwaukee.

Getty Images 6 months ago

CHICAGO, IL - AUGUST 20: Starting pitcher Edwin Jackson #22 of the St. Louis Cardinals walks off the field after the seventh inning against the Chicago Cubs at Wrigley Field on August 20, 2011 in Chicago, Illinois. The Cubs defeated the Cardinals 3-0.

Getty Images 6 months ago

CHICAGO, IL - AUGUST 20: Starting pitcher Edwin Jackson #22 of the St. Louis Cardinals delivers during the first inning against the Chicago Cubs at Wrigley Field on August 20, 2011 in Chicago, Illinois.

AP Photo 6 months ago

St Louis Cardinals pitcher Edwin Jackson is not happy after the Chicago Cubs's Aramis Ramirez hit a two-run home run off him in the fourth inning to give the Cubs a 2-0 lead in a baseball game on Saturday Aug. 20, 2011 in Chicago.

AP Photo 6 months ago

St. Louis Cardinals' Allen Craig, center, is greeted in the dugout by teammates Rafael Furcal (15) and Edwin Jackson, right after hitting his second home run of the game, this one, a solo shot in the seventh inning of the baseball game against the Pittsburgh Pirates on Wednesday, Aug....