Revis suffered a concussion in the third quarter while tackling Texans running back Akeem Hunt. He walked slowly off the field and was taken to the locker room for tests. He didn't return and will be in the NFL's concussion protocol in the coming days.
Mangold required stitches in his right (snapping) hand after sustaining a "severe laceration" in the second quarter, coach Todd Bowles said.
Mangold, who didn't return to the game, will have an MRI on Monday to see if there's any ligament and/or tendon damage. X-rays were negative. The cut is located between his pinky and ring finger. He has no idea how it happened.
"I came to the sideline and I saw some blood," he said. "I looked down and that's when we went inside. ... It was completely random. I haven't seen anything like this before. This is a new one."
After returning to the sideline, Mangold, with a heavy wrap over the stitches, said he tried a few practice snaps. He couldn't grip the ball and didn't want to hurt the team.
"That's all I needed to do, roll a couple of snaps and screw the team over," he said.
Mangold was replaced by Wesley Johnson, who started three weeks ago when Mangold was sidelined with a neck injury.
Revis, who wasn't available to talk to reporters after the game, suffered his worst game of the season, allowing four catches for 98 yards to DeAndre Hopkins, including a 61-yard touchdown.
As Revis walked to the locker room, his replacement, Marcus Williams, was burned on a 20-yard touchdown pass to Hopkins.