The Mariners selected catcher Jose Yepez from Triple-A Tacoma to take Bedard's spot. The move is retroactive to June 28 and Bedard may just miss one start before he is eligible to come off the DL, depending on how Seattle uses its off days between now and the All-Star break. Seattle designed pitcher Chaz Roe for assignment to clear a spot on the 40-man roster for Yepez.
Bedard threw on Monday night against Atlanta, giving up three runs and four hits in seven innings of a 3-1 loss. Bedard entered that start with the best ERA in baseball over the previous two months and is 4-6 with a 3.00 ERA this season after missing all last year following shoulder surgery.
"We knew he was feeling a little something after his last start and has been working through it since then," Seattle manager Eric Wedge said. "We put him on the 15-day DL and we hope it is not much more than that."
The latest injury continues his string of health problems since being acquired by Seattle before the 2008 season, although all his problems before now have been arm related. Bedard went 20 months between major league starts, missing the entire 2010 season. He also missed parts of the 2008 and '09 seasons with arm problems.
Since joining the Mariners, Bedard is 15-13 with a 3.15 ERA in 45 starts.
Yepez was hitting .296 in 28 games with the Rainiers.
The Mariners made the moves ahead of the series finale against Atlanta. Bard is in the starting lineup and batting ninth.
Gimenez played the final six innings on Tuesday night with the injury. Miguel Olivo started but had to leave in the fourth inning with leg cramps.
Gimenez had tweaked the injury during batting practice but it got progressively worse.
Bard is hitting .301 with two homers and 41 RBIs at Tacoma. The Mariners had to designate left-handed pitcher Edward Paredes for assignment to clear a 40-man roster spot for Bard.
Information from The Associated Press was used in this report.