Keller was injured in the second quarter after landing on his shoulder and woozily leaving the field. He sat for the remainder of the quarter, but returned in the second half.
"I was shaken up for a couple of seconds," Keller told ESPN. "Obviously, the doctors were concerned, so they brought me in the locker room. I was pretty upset about that because I knew I was fine and I could get back in the game. They put me through all these tests, over and over and over again, which was really annoying, but obviously you have to follow NFL protocol. I passed all the tests, and I was able to come back in the second half."
Greene was injured late in the game and did not return.