Grady Fuson, the Padres' vice president of scouting and player development, said Tuesday that Tate, who on Aug. 17 agreed to a club-record $6.25 million signing bonus, said the injury is "nothing serious" and that Tate will be on anti-inflammatory medicine for about 10 days.
Tate, the No. 3 overall pick in the 2009 Draft, first complained of abdominal pain in his side during workouts at the Padres' Spring Training facility in Arizona.
Tate reported some pain in his abdominal area last spring during his senior year in high school.
Tate won't be able to work out until he's off the medication. At that point, Fuson said, he'll be ready to participate in the Padres' fall instructional league program in Arizona.
Corey Brock is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.