Peavy is 8-4 with a 4.28 earned-run average in 13 starts this season. The 2007 NL Cy Young winner was considered the best starting pitcher on the market ahead of Wednesday's non-waiver deadline.
The Red Sox also got reliever Brayan Villarreal from the Tigers. They sent three minor leaguers to the White Sox as part of the deal.
Boston Manager John Farrell is certainly on-board with expanding the use of replays in baseball after an admitted blown call cost the Red Sox the potential tying run in a loss a night earlier.
Speaking to reporters at Fenway Park on Tuesday night about three hours before Boston opened a three-game series against Seattle, Farrell said he believes that with better technology baseball can get more "out or safe" calls correct.
With the Red Sox trailing by a run in the eighth inning of a 2-1 loss to Tampa Bay on Monday, pinch-runner Daniel Nava was called out by home plate umpire Jerry Meals attempting to score on a fly ball. After watching the replay, Meals admitted to a pool reporter from the Associated Press that he was "wrong on my decision."
The Cleveland Indians acquired left-handed reliever Marc Rzepczynski from the St. Louis Cardinals. The Indians sent minor league infielder Juan Herrera to St. Louis in exchange for Rzepczynski, from Anaheim Servite High and UC Riverside. ... Cardinals catcher Yadier Molina left Tuesday night's game against Pittsburgh with a strained right knee and may be headed for the disabled list.