Another day, another Rule 5 pick returned.
Multiple online sources are reporting that Colorado will return Danny Rosenbaum following the signing of veteran RHP Jon Garland. Rosenbaum was 2-1 with a 4.50 ERA and a 1.50 WHIP in six appearances for the Rockies this spring, the last of which came a week ago when the 25-year-old southpaw gave up a single and a walkoff home run in a 9-7 loss to the Giants.
He had been competing for the final bullpen spot — five of his six outings were in relief — in a group of relievers that included notables such as Chris Volstad and Manny Corpas.
Like Kobernus, he’s expected to be reassigned to minor-league camp, but it’s much less clear where he’ll begin the season. Last season was arguably his worst, beginning with 7-2, 1.94 in his first 13 starts, but finishing in a freefall of 1-8, 6.54 in his last 13 starts for an 8-10, 3.94 mark overall.
While often compared to former Nats farmhand Tommy Milone, a comp that seems largely based on size (both are shade taller than 6′ with a “sturdy carriage”) and dexterity and the soft-tosser perception. The reality is that Rosenbaum has always thrown harder than Milone (low-90s vs. high-80s), but with a little less control (2.5 vs. 1.5 BB/9).
Still, it’s a understandable linkage because both have shown the ability to get guys out without lot of flash while pitching deep into games (e.g. 171⅓ IP in 2011). Rosenbaum works off a heavy, sinking fastball, which has produced groundball rates of 50%-plus the past two seasons, including 56.7% last year, while mixing in a cutter as well as a changeup and a curve as his secondary pitches.
Like a lot of the AA and AAA pitchers, it’s difficult to predict where he’ll begin the season given the signings of multiple free agents. What’s probably more certain is that he’ll return to starting, given his durability and track record.