Shin-Soo Choo rebounded nicely last year after injury cut short his 2011, and now his home is hitter-friendly Great American Ballpark. Plus Wainwright, Villanueva, Howard and Craig.

Colby Rasmus hasn't lived up to the hype he had as a prospect years ago. Any chance that this is the year? Plus Roberto Hernandez, Adam Dunn, Aaron Harang, and Josh Donaldson.

There's some familiarity about Carl Crawford's April. Plus Aroldis Chapman, Patrick Corbin, A.J. Pollock, and Evan Gattis.

Matt Moore is first among AL starters in ERA, but the underlying skills suggest his success may not be sustainable. Plus, Rios, Fister, Napoli, Doumit.

It took John Buck until June last year to record his 6th home run and 20th RBI. This year, it took 15 games. Is he capable of producing a breakout season? Plus B.J. Upton, A.J. Burnett, Daniel Murphy and Travis Wood.

Elvis Andrus is off to a slow start; can he turn it around? Also Josh Johnson, Maicer Izturis, Phil Humber, and Seth Smith.

Late bloomer Ryan Vogelsong is a solid production starter in the NL. Plus Jaime Garcia, Dan Uggla, Todd Frazier and Ross Detwiler.

Ben Zobrist's (RF, TB) combination of power and speed has made him a valuable fantasy commodity, but one of those skills could soon disappear. Also C.J. Wilson, Jason Hammel, Vance Worley, Tyler Flowers.

Few expected Wilin Rosario to duplicate his Double-A stats in his first big league season. At age 24, could there be more to come? Plus Paul Maholm, Pedro Alvarez, Kevin Slowey and Travis Snider.

Lance Berkman doealt with knee issues last year with the Cardinals. Can he stay on the field and do well now that he's in a hitter's park in the American League? Plus David Price, Kyle Seager, Ernesto Frieri, Franklin Gutierrez.

Jay Bruce got to career highs in HR/RBI in 2012. Is there more production in his tank? Plus Edwin Jackson, Ben Revere, Barry Zito and Juan Francisco.