Texans outside linebacker Jadeveon Clowney (90), who was in on about 60 percent of the defensive plays against Cincinnati on Sunday, has not been able to practice this week because of swelling in his surgically repaired knee.
There are two players I feel bad for as the Texans prepare for Sunday's game against Tennessee.
1   Quarterback Ryan Mallett, who suffered a season-ending torn pectoral muscle and lost his opportunity to show coach Bill O'Brien he could be the long-term answer.
1   Outside linebacker Jadeveon Clowney, who continues to experience problems with his surgically repaired knee, forcing him to play in pain and be a shell of what he was before the injury.
After talking with several persons familiar with the situation and listening to Clowney answer questions from reporters Thursday, there is no doubt he is hurting and trying to play through the pain.
After playing a season-high 49 snaps or 60 percent of the plays in Sunday's 22-13 loss to Cincinnati, Clowney has not been able to practice this week.
When asked about the chances he will play against the Titans, he said, "Slim, right now."
I'm sure Clowney is tired of answering the same questions about his knee. The truth is he doesn't know what is going to happen with it. He hopes that rest and rehabilitation will make it 100 percent.
The last thing he wants is to undergo more arthroscopic surgery.
Unlike some people locally and nationally, I don't think Clowney is a wimp or can't play with pain. He has been playing with pain. He hasn't been playing more because there is swelling in his knee.
"When the swelling comes up, there's a little setback," he said. "You push it and push it, and it swells, and you let it go back down. I'm just trying to get it back to where it was before I got hurt."
It is obvious to anyone who watched Clowney play against Cincinnati that he lacks the quickness and explosiveness he had before he suffered the injury in the season-opening victory over Washington.
Imagine Clowney's frustration with his inability to explode off the line of scrimmage, close on the quarterback with cheetah-like quickness or chase down plays with the speed of a wide receiver. That is the God-given ability that helped him become the first pick in the draft.
Texans
Nobody likes to be less than they can be, including a rookie with enormous pressure on him because he was billed as a once-in-a-generation pass rusher.
Clowney on Thursday was asked how his knee feels.
"A lot of pain right now," he said. "It's been bothering me off and on the whole season.
"It's been tough not being able to play. I'm doing what I can to help the team win. That's the hard part about it. It's keeping me from doing a lot of the things I could do before I got hurt."
Before the Cincinnati game, Clowney reached out to inside linebacker Brian Cushing for advice. Pain has been Cushing's constant companion since he suffered season-ending knee injuries - as well as a fractured fibula - in 2012 and 2013.
Cushing has a good idea what Clowney is going through - mentally as well as physically.
"I told him before the game my knee was bothering me," Clowney said. "He said, 'Come over here and do some warm-ups I do.'
"It's some stuff I'd never done. He's had a few injuries, so he knows how to get it going. I followed his lead. It helped a lot. It loosened (knee) up for me."
But now Clowney is sidelined after suffering another setback.
"It's taking some time," he said. "I'm kind of surprised. I thought it would be back to where it was by now."
At this point of the season, it is obvious to just about everyone Clowney won't be the same player the Texans drafted until next season.