TORONTO (AP) -The Toronto Blue Jays inserted right-hander Josh Towers into the starting rotation on Thursday and designated righty Tomo Ohka for assignment.
``It wasn't working out so we'll make an adjustment,'' manager John Gibbons said.
Towers is 2-3 with a 5.15 ERA in 10 games this season. He went 1-3 in four April starts before being demoted to the bullpen.
``He's the logical choice,'' Gibbons said. ``He's been pitching good in that role out there.''
Towers, who's in the second year of a two-year, $5.2 million contract, will start in Ohka's place in San Francisco on Monday.
Ohka was 2-5 with a 5.79 ERA in 10 games, all starts. He allowed five runs on 10 hits in 3 1-3 innings against Tampa Bay on Wednesday, his shortest start of the season.
The move frees up a roster spot for catcher Gregg Zaun, who is scheduled to join the team in Los Angeles on Friday for the start of a three-game series against the Dodgers. Zaun has been on the disabled list since April 25 with a broken right thumb.

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