Red Sox's Lester to start on Opening Day
New Red Sox manager Bobby Valentine made the announcement Monday.
Lester, 28, also started Boston's first game of the 2011 season in Texas. He will be the first left-hander to start on Opening Day in back-to-back years for the Red Sox since Mel Parnell started three straight openers from 1952-54.
A two-time All-Star who was selected by the Red Sox in the second round in 2002, Lester is 76-34 with a 3.53 ERA and 894 strikeouts in six seasons.
Lester will oppose Detroit's Justin Verlander.