After the game, Titans coach Jeff Fisher said McNair was doubtful for next week's game against the New York Jets. At his Monday news conference, Fisher said that the results of Monday morning's MRI exam wouldn't impact his decision on whether McNair will play next Monday night.
"If he's able to run and push off, he'll be able to play," Fisher said.
After the game, McNair discussed the extent of the injury.
"It's my back foot, so I've got to plant it on the drop-back to stop," McNair told the paper. "So that's probably the worst thing I could do. And when I go to my left to hand off, I push off on it.
"That's the main thing, and it's a pain right now."
McNair was hurt after throwing a 5-yard pass Frank Wycheck.
After he released the ball, defensive end Patrick Kerney simply
touched McNair, who took a tentative step and immediately reached
for his calf.
He dropped to the turf, but walked off without any assistance.
"I threw it to Frank and was on my way dropping back, and all of a sudden, it just tweaked," McNair told the paper. "Nobody hit me or anything, just an awkward position coming down. I just felt it pop and spasm up real quick, and I just couldn't put any pressure on it at that point."
Billy Volek replaced McNair, and led the Titans to a 38-31 victory.
Information from the Associated Press was used in this report.