Scott Baker is a seven-year major-league veteran who has started 159 of the 163 games he's appeared in. He's also thrown 200 innings in a season just once, in 2009 when he threw exactly 200 innings. That's a pretty good indication that a pitcher can't stay healthy, and after missing most of the Grapefruit League, Baker will not play in 2012 after undergoing surgery on his right elbow.
Scott Baker to undergo surgery on right elbow to fix flexor pronator tendon. Six months for rehab. Out for year. #Twins.— Rhett Bollinger (@RhettBollinger) April 11, 2012
Baker struggled with a similar injury last year, and isn't having his UCL repaired, so this isn't Tommy John surgery. But the surgery will knock him out for the season. He is scheduled to be a free agent after the season, so this is possibly the end of his Minnesota Twins career.
Liam Hendriks was Baker's replacement out of spring training, and he'll likely stay in the rotation.