RHP Brendan White
The bullpen, much like the rest of the roster, will be a revolving door all season long. Arms will constantly be going back and forth between Detroit and Toledo. One of the first to be called up will likely be Brendan White.
White had a solid spring, but struggled with his command at times. He's got a nice fastball and a wicked slider. If he throws strikes, he could be a dominant arm out of the 'pen.
He is probably not the first arm in the pecking order. Miguel Diaz and Tyler Holton are among the arms that will likely get the call before he does. But I still expect him to get called up well before the All-Star break.
White has the potential to be a really nice reliever for the Detroit Tigers. Expect to see him up sooner rather than later.