Yankees call up Dellin Betances, demote Brett Marshall

In a move to strengthen their bullpen, the Yankees called up Dellin Betances from Triple-A on Thursday. To make room for him on the roster, Brett Marshall was sent back to Triple-A, reports Sweeny Murti of Sportsradio 66 WFAN.

Marshall, 23, threw 108 pitches in 5.2 innings of relief Wednesday night and likely would have been out of commission for the next few games. He gave up five earned runs during that appearance. Marshall was called up just three days ago when Brennan Boesch was demoted to the minors.

Betances, 25, is a former top prospect who was in Baseball-America's top 100 prospects list as recently as 2012. He struggled mightily last year with a 6.44 ERA and 1.850 WHIP in 27 games, 26 of which were starts. He has not been very good in 2013, either, with a 5.40 ERA and 1.341 WHIP. Walks have haunted him all his career as he has otherwise shown an ability to make hitters miss with high strikeout numbers and a low number of hits.

Betances is likely to remain on the roster only for a short while. Joba Chamberlain is due to be activated from the disabled list soon, and Betances may very well be the player sent down to open up room for him.