The Brewers have placed right-hander Yovani Gallardo on the 15-day disabled with left hamstring tightness and replaced him on their 25-man roster with second baseman Scooter Gennett.

Gallardo left his start Tuesday in the first game of a doubleheader in Chicago in the fifth inning after experiencing tightness in his hamstring. He actually tweaked it earlier in the game making a diving catch of a popped-up bunt. The Brewers must have decided that Gallardo would miss at least one start so theydecided to place him on the DL.

Gallardo was examined Wednesday in Milwaukee.

"Mild strain" manager Ron Roenicke said. "We were fortunate there. It was a question whether to put him on the DL. He was going to have to miss one game for sure maybe two. Then your bullpen hurts. (Tyler) Thornburg is in his place and you lose that bullpen guy."

Thornburg the rookie right-hander who pitched six shutout innings in the second game of the doubleheader against the Cubs will replace Gallardo in the rotation for now Roenicke said.

Gennett had been called up as the 26th player allowed when a team has a doubleheader. To make the paperwork official he was optioned to Class AAA Nashville after the game but was recalled Wednesday to fill the roster spot vacated by Gallardo. The roster moves give the Brewers a full five-man bench. They had been playing with an extra pitcher since calling up reliever Rob Wooten last week from Nashville.

"Yesterday I was planning on it being a one-day deal" Gennett said. "Now it's a little bit longer. It's a great opportunity and a great feeling to be called up and be here. Back and forth is just fine. At this point in my career I want to do the best wherever I am."

No moves: The 3 p.m. trading deadline passed Wednesday without the Brewers making another trade.

Last week they moved closer Francisco Rodriquez for minor-league infielder Nicky Delmonico.

Brewers general manager Doug Melvin made his move early sending Rodriguez to Baltimore for Delmonico a third-base prospect. He had some calls on some of his other relievers but saw nothing worth doing. Teams also called about outfielder Norichika Aoki but the Brewers had no intention of moving their productive rightfielder.

Melvin insisted all along he "was not motivated" to trade starting pitchers Kyle Lohse and Gallardo. That became moot when Gallardo went on the disabled list.

Injuries changed what might have been an active trade deadline for the Brewers. First baseman Corey Hart on the last year of his contract had two knee surgeries and never made it on the field. Third baseman Aramis Ramirez who would have been of interest if healthy and productive is on the DL with a lingering knee injury.

"There are so many players injured throughout baseball not just on our team" said Melvin. "It hurts the depth on clubs and prevents them from making deals they'd like to make. It's not just our club.

"I talked to three GMs today but there was nothing serious. They were just checking in basically. There was nothing of a serious note that might lead to something.