The Twins have signed supplemental first-round pick, third baseman Travis Harrison from Tustin (Calif.) High. Harrison, who was committed to Southern California, agreed to a deal worth $1.05 million.

Harrison may move to left field or first base, but has some thunder in his bat. Harrison established himself as one of the top power hitters in Southern California early, homering off future Rockies first-rounder Tyler Matzek with a wood bat as a freshman in scout ball. He easily rates as the region's best high school bat this year. Harrison has a physical 6-foot-2, 215-pound frame and above-average righthanded power potential. Some scouts think he could be an above-average hitter, too, if he does a better job protecting the outer half and adjusting to breaking balls. He can make loud contact, but he centers balls on the barrel inconsistently, and other scouts see him as just an average hitter.