Speaking to the press after the game McClennan revealed the Rhinos will know more in the next couple of days, "We don't know the extent of the injury yet, hopefully it is a ligament injury and not a fracture but he will have a scan in the morning back in Leeds and that should clear things up for us.
"The medical staff are taking good care of him and will travel home with the team tonight," added McClennan.
The Rhinos had led 10-0 in the first half but were hit by a second half fightback from the Warriors, McClennan conceded that the better team won on the night, "They were smarter than us at times. We did not execute well at times and that cost us. Even though we were 10-0 up we were not playing that well. I thought Phil Bentham did a good job controlling the ten and that helped create a good game.
"We did give a way a few too many penalties towards the end but that was down to fatigue rather than disrepect for the officials. We have got Warrington next week and we will look forward to that game now," added McClennan.
The Rhinos coach also confirmed that he is hopeful that Brent Webb will be available for the Warrington clash next Saturday at Headingley Carnegie.