Early standouts in the AFL 

October, 12, 2012
10/12/12
9:15
AM ET

Nick CastellanosJamie Squire/Getty ImagesWhile the Tigers do work in the playoffs, top prospect Nick Castellanos is shining in the AFL.
The Arizona Fall League's 20th season began on Tuesday afternoon, and through the first three days I've seen four of the six clubs, two games apiece. Here are some early impressions on prospects who've stood out. Bear in mind I haven't seen Peoria or Surprise yet, and that these are preliminary impressions of players I'll see a few more times over the next week or two.

• Kaleb Cowart (Los Angeles Angels) has been the most impressive prospect overall through these two days, showing great, quick hands at third base along with a plus arm, and good bat speed resulting in some hard contact. A switch-hitter, his left-handed swing does leave him vulnerable to changeups because he loads his hands so deep, pulling them way back even as the rest of his weight is shifting forward, and he has struck out at least twice against right-handers who fed him two-strike changeups.