Rotowire: Mar 22 / 8:39a ET
News: Thielbar has given up three runs in five innings this spring and isn't a lock to make the major league bullpen despite a 5:1 K:BB ratio, the Minneapolis Star Tribune reports.
Impact: It's surprising he's on the roster bubble since he was in the majors all last season and pitched effectively (3.40 ERA). Thielbar is battling Aaron Thompson, A.J. Achter, J.R. Graham, Mark Hamburger and Stephen Pryor for one of the final two spots in the bullpen.