Detroit Tigers designated hitter Victor Martinez was released from the hospital Saturday but won't make the team's next road trip and it is clear he won't be back in action when his mandatory 10-day stint on the disabled list expires."They're going to monitor him for seven to 10 days," Tigers manager Brad Ausmus said. "He's not going on the road trip with us. He's staying here. The prognosis is he's probably going to need a week of rest before he does anything else."Martinez had an irregular heartbeat during Thursday night's game with Tampa Bay and was removed for a pinch runner after reaching first on a run-scoring error in the seventh inning.--The Texas Rangers placed right-hander Andrew Cashner on the 10-day disabled list with a left oblique strain.Cashner yielded 10 hits and four runs in four-plus innings for the loss of the Houston Astros' 13-2 victory over the Rangers on Wednesday night. The move to the DL is retroactive to Thursday.Cashner, 30, has gone 3-6 with a 3.50 ERA over 69 1/3 innings in 12 starts for Texas this season. He ranks second on the staff in ERA and is 13th in the American League. The first date he would be eligible to return is June 25.The Rangers also recalled right-hander Ernesto Frieri from Triple-A Round Rock. To make room on the 40-man roster for Frieri, the team designated outfielder Peter O'Brien for assignment.--Baltimore Orioles first baseman Chris Davis likely will be sidelined until after the All-Star break with a right oblique strain.The Orioles placed Davis on the 10-day disabled list Wednesday after he was injured during Monday's 10-6 loss to the Chicago White Sox while flying out to right field with the bases loaded in the third inning.Davis, 31, told reporters Saturday he will have to wait about a week to 10 days for the inflammation and swelling to subside before resuming any baseball activities. Orioles manager Buck Showalter indicated he doesn't expect Davis back before the All-Star break, which begins July 10."I think three weeks would be real ambitious," Showalter said before Saturday's game against the St. Louis Cardinals. "I'd sign up for that right now, but who knows.--The Tampa Bay Rays acquired infielder Trevor Plouffe from the Oakland Athletics, two days after he was designated for assignment. The A's traded Plouffe and cash to the Rays in exchange for a player to be named later or cash.Plouffe was batting .214 with seven home runs and 14 RBIs in 58 games with Oakland before he was designated for assignment on Thursday, his 31st birthday. He was 6-for-51 (.118) over his last 18 games.