Marlins manager Mike Redmond said Tuesday that he's unsure when Logan Morrison (knee) will begin a rehab assignment. Morrison is playing in extended spring training games, but the Marlins want him to get more at-bats. "He hasn't had many at-bats so I don't know how far out he is before he starts his 20-day rehab," Redmond said. Barring a setback, LoMo should return sometime next month.