Matt Wallner Injury: Begins running

Wallner (hamstring) has started up a running program that includes turns, and he's also taking batting practice, MLB.com reports.

Wallner is making progress in his recovery from the hamstring strain he suffered nearly a month ago, but a timetable for him to begin a rehab assignment isn't clear. He was diagnosed with a Grade 3 strain, with the team initially giving him an estimated return of early June. Since he's only starting to run full speed and hasn't yet run the bases, that timetable may be a little optimistic, however.