Tigers' Matt Vierling: Doing light baseball activities

Vierling (shoulder) has begun light, modified baseball activities, Cody Stavenhagen of The Athletic reports.

It's not much, but Vierling being able to do anything one week after being diagnosed with a strained right rotator cuff muscle provides some optimism. Vierling won't be ready for Opening Day, and it's not yet clear how much time he might miss.