Troubled receiver Josh Gordon, who will be released by the Browns on Monday, showed up late to the team’s facility Saturday morning and was “not himself,” league sources said in a report by cleveland.com.

Gordon, who has a long history of substance abuse and suspensions, missed three weeks of training camp this summer to undergo counseling and treatment, and recently said he was in a good place mentally and physically.

But a source Saturday told cleveland.com that Gordon was “a little tardy” arriving to the facility, where he he complained of a pulled hamstring. Gordon, however, was fine in practice on Friday, a league source told the website.

On Saturday, team doctors examined Gordon and seemed to confirm he had a tweaked hamstring, but there also was concern that perhaps he was struggling again with his sobriety or on the verge of relapsing, sources told the website.

The sources reported that Gordon was told to not to make the trip to New Orleans for Sunday’s game against the Saints. Gordon was upset about it, one of the sources said, surmising he was mad because he felt he had let down the team with the hamstring.

Though Gordon is set to be released Monday, there still is a possibility the Browns will be able to trade him.

Multiple league sources told ESPN they believe the Browns will ship the troubled receiver before Monday and that Cleveland already has been getting calls about it.