VIERA, Fla. -- The Nationals have received Rule 5 draft pick Daniel Rosenbaum back from the Rockies, re-acquiring a left-hander who could serve as rotation insurance this season.
Rosenbaum, 25, was selected by the Rockies in December's Rule 5 draft and was making a bid to crack their Opening Day roster. He allowed four runs in eight innings of work this spring, but Colorado's late signing of veteran right-hander Jon Garland ate up the last available spot on the pitching staff and made Rosenbaum expendable.
Per Rule 5 regulations, the Rockies were required to pass Rosenbaum through waivers and then offer him back to the Nationals for $25,000 (one-half of the original cost to draft him). The Nationals elected to re-acquire him and plan to have him join the rotation at Class AAA Syracuse to begin the season.
A 22nd-round pick in 2009 out of Xavier University, Rosenbaum blossomed into one of the most effective lefties in the Nationals' farm system. In four minor-league seasons, he's 26-24 with a 2.84 ERA and 1.190 WHIP, spending all of last year at Class AA Harrisburg.
With the Nationals in need of starting depth in case one of the members of their Opening Day rotation gets hurt, Rosenbaum's return could prove fortuitous down the road. Assuming veteran Chris Young opts out of his contract tomorrow, Rosenbaum would be among the potential replacement starters in Syracuse, along with right-handers Ross Ohlendorf and Yunesky Maya.