Four other rookies who, like Joe Mauer, could hit it big in 2004
BOBBY CROSBY, SS, Athletics, 24
This 2001 first-round draft pick (right) blossomed as a power hitter last season, belting 22 home runs at Triple A Sacramento while stealing 24 bases. With Crosby ready to move up, Oakland was able to let free agent Miguel Tejada walk and use the extra money to re-sign third baseman Eric Chavez.
ZACK GREINKE, RHP, Royals, 20
Think Bret Saberhagen. The 6'2", 190-pound baby-faced starter has a veteran's repertoire (moving fastball that tops out in the mid-90s, change, curve, slider) plus an easy, compact windup and impeccable command. In 87 innings at Class A Wilmington (Del.) last season he had a 1.14 ERA.
EDWIN JACKSON, RHP, Dodgers, 20
He owned Double A hitters last year, fanning 157 in 148? innings with a 3-to-1 strikeout-to-walk ratio. In his big league debut last September he beat Randy Johnson. Jackson's mid-90s fastball and biting breaking ball have manager Jim Tracy comparing him with a young Dwight Gooden.
ALEXIS RIOS, OF, Blue Jays, 23
This 6'5", 195-pounder won't break camp with the big club, but if he excels in Triple A his stay in the minors could be short. At Double A New Haven ( Conn.) last year he batted .352 with an OBP of .402 and a slugging percentage of .521. His primary need: better discipline at the plate.