Marc Topkin of the Tampa Bay Times reports that Alex Cobb is expected to be sidelined for 4-6 weeks with his strained left oblique.
Rays placed RHP Alex Cobb on the 15-day disabled list with a left oblique strain.
Alex Cobb spun seven shutout frames in a 1-0 win over the Reds on Saturday.
Alex Cobb threw seven scoreless innings, giving up just three hits and a walk, but took a no-decision against the Rangers on Sunday.
Alex Cobb got the loss in Tuesday's start against the Blue Jays, allowing four runs in five innings of work.
Alex Cobb struck out a Grapefruit League-high 12 while allowing three runs in seven innings Saturday against the Orioles.
Alex Cobb shut out the Blue Jays for three innings in his start Friday.
Alex Cobb lasted just five innings Monday, getting charged with three runs -- two earned -- in a 5-4 walk-off win over the Red Sox.
Alex Cobb held the Indians scoreless over 6 2/3 innings as the Rays moved on to the American League Division Series with a 4-0 win in Wednesday's Wild Card Game.
Alex Cobb is expected to start Wednesday night's Wild Card Game if the Rays advance to it.
Alex Cobb allowed three hits over seven-plus innings in the Rays' 4-0 defeat of the Yankees on Thursday.
Alex Cobb allowed one run over 8 1/3 innings and struck out 12 batters in a 5-1 win over the Orioles on Saturday.
Alex Cobb allowed two runs in eight innings and struck out 10 in a victory over the Rangers on Monday.
Alex Cobb allowed three runs over 5 2/3 innings of a no-decision against the Red Sox on Wednesday.