INDIANAPOLIS (AP) — Top draft prospect Star Lotulelei will undergo more extensive heart tests when he returns to Utah.

Doctors at the NFL's scouting combine found the star defensive tackle and likely high pick has a heart condition, Lotulelei's agent, Bruce Tollner, confirmed in a series of emails with The Associated Press.

Tollner said Lotulelei would not take questions regarding the diagnosis yet. But the 6-foot-2, 311-pound defensive tackle still plans to do a full workout in front of scouts at his regularly scheduled Pro Day on March 20. The Tonga native was scheduled to fly to Utah on Monday night, Tollner said.