"I don't know," Gates said. "It's weird, because after the game you just never know how this thing is going to react. I deal with so much pain after the game. It discourages me so much. It's so painful that I say, 'I can't keep doing this.' The beauty of it is, I pray about it and I wake up Sunday morning, and that's usually when I know if I'm going to play or not."
Gates has appeared in 10 games this season, catching 50 passes for 782 and 10 touchdowns.
The Associated Press contributed to this report.