Chris Houston has had an up-and-down season after signing a five-year, $25 million contract in March. 

The coaches seem perplexed and aren’t sure if it’s related to injuries. He's doubtful for Monday with turf toe, he missed the Thanksgiving game with a foot injury, in October he had a hamstring and in training camp it as a migraine that brought him down.

Defensive coordinator Gunther Cunningham shakes his head about Houston.

“He has (had a bit of a down year). He knows it, I know it and we’ve talked about it,’’ Cunningham said Saturday. “I can’t tell you on the injury part, I just try to coach. I’ve had a lot of talks with him, he has to learn how to handle things and come back and play.’’

Houston had a bad game in the Oct. 20 loss to Cincinnati and bounced back the next week with a good effort in the win over Dallas. It's been like that throughout the season.

Schwartz said every player goes through injuries.

“There is no asterisk next to your play or to wins and losses or anything else,’’ Schwartz said. “The whole thing is getting the job done. That’s the only thing that we can take out of it. We can’t point to anything other than our play on the field when it comes to success or failure.” 

Houston has missed practice all week with a toe injury and is listed as doubtful to play on Monday night.

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