Each week, the Rookie Report takes a look at the most prominent recent additions to major-league rosters, as well as players who recently made their debuts.
Sean Henn, SP, Yankees: Back again from the minor leagues because of an injury to Kevin Brown, Henn was 4-2 with a 3.19 ERA and 1.167 WHIP in eight starts for Triple-A Columbus between his two major-league spot starts against the Devil Rays. Despite those numbers, however, Henn is a pitcher who probably wouldn't in the majors if the Yankee farm system weren't so barren. He's inconsistent with his command, with a 3.55 walks per nine innings ratio and nine walks in seven innings in his first two major-league starts, and he's the kind of guy who generally takes time to adjust to more advanced hitters each time he's promoted. Henn's best chance at fantasy value is if he's moved in a trade-deadline deal to a team with less pressure, but it might take him a couple of years to develop anywhere.