AUSTIN, Texas -- Texas Longhorns quarterback Jerrod Heard, who is in a three-way competition for the starting job, has been diagnosed with a minor right shoulder sprain, the school announced Thursday.

The sophomore suffered the injury to his throwing shoulder during spring practice on Tuesday and has started rehabilitation. The Longhorns said there is no timetable for his return this spring.

Texas QB Jerrod Heard, who started 10 games last season and is in a three-way battle for the starting job in 2016, has a minor sprain of his right (throwing) shoulder. Michael Thomas/AP

Heard is competing with senior Tyrone Swoopes and freshman Shane Buechele for the starting job next season in new coordinator Sterlin Gilbert's offense.

Head coach Charlie Strong was hoping to determine a starter by the end of spring, but Gilbert said Tuesday there's no timeline for a decision and that "nobody" was in the lead.

Texas opens the 2016 season at home against Notre Dame.

Heard started 10 games for the Longhorns in 2015, passing for 1,214 yards and five touchdowns and rushing for 556 yards and three scores. Swoopes started the final game of the season, an upset win on the road over No. 12 Baylor, after Heard suffered a concussion during a loss to Texas Tech.

ESPN Staff Writer Max Olson and The Associated Press contributed to this report.