NFL: Houston Texans vs Denver Broncos Scrimmage

Houston Texans linebacker Jadeveon Clowney participates in warmups before the start of a scrimmage against the Denver Broncos on Wednesday. (Ron Chenoy / USA Today Sports / August 20, 2014)

Clowney hurt in joint practice with Broncos

Houston Texans outside linebacker Jadeveon Clowney finished practice in the medical tent Wednesday at the Denver Broncos' team facility.

He left practice with 35 minutes remaining, and there were conflicting reports about the nature of his injury. The Houston Chronicle reported Clowney left with a groin injury.

Clowney more than held his own against Denver left tackle Ryan Clady to disrupt quarterback Peyton Manning, but appeared to be favoring his left shoulder or left side of his neck, according to USA Today. He did not receive medical treatment before the team ushered him to a bus following practice.

The biggest indication the injury might not be serious: Head coach Bill O'Brien was not briefed on Clowney's condition and said he was unaware there was any injury to the No. 1 overall pick in the 2014 draft.

Clowney was back at full strength after undergoing sports hernia surgery in June.

Two more practices -- Thursday and a walkthrough Friday -- are scheduled at the Broncos team facility before Saturday night's game.

Clowney's status for Saturday's game is uncertain.