Transcript for Kansas City Chiefs' QB Patrick Mahomes speaks out about recovering from hard hit
We want to move to the big sports news of this morning. The star quarterback of the Kansas City chiefs, Patrick Mahomes, has now been cleared to play in tomorrow's afc championship game against the bills. Mahomes spoke publicly for the first time about recovering from a hard hit last weekend and balancing his desire to play with his desire for personal safety. You want to be out there, but you have to go through the protocol and have to do everything the right way. I mean you have to look at it long term as much as short term and going to doctors and talking to all the doctors and going through the testing, we have the belief that this will be no linger effects and that I'll be able to out there and be myself and be who I am every single week. Let's bring in sports columnist and commentator Christine Brennan. Christine, good morning. Do we know any specifics about Mahomes' condition? He was put into what's called concussion protocol. But does that necessarily mean that he actually had a concussion? The Kansas City chiefs are not saying, Dan, so we do not know for sure that it was diagnosed as a concussion, but people saw, of course, the video. He's wobbly when he gets hit in the game against Cleveland. He couldn't continue in the game. He was immediately put into as you describe concussion there are independent doctors that are looking at this. It's not a team decision. It's a league decision. But, no, we do not know for sure if he was diagnosed with a concussion specifically. What is the latest research tell us about the risk of concussion which will still, of course, be there for Patrick Mahomes in the game on Sunday? One of the things that struck me about this story as we've heard, the Boston university research, that one concussion that leads to another that leads to another. Again, we don't know for sure that Mahomes had a concussion here. This is a violent sport and they've done a lot with the helmets and protocol. You have to give them credit for doing so much more than they were doing before and that's great news. But the unknown of what all these young players now playing, Dan, who we're cheering for and people love to watch in big games Sunday, what will they look like, you know, in 30 or 40 years? How will their lives be? That's something we don't know and that is the cautionary tale of this story and every story involving head injury. Christine Brennan, thank you very much for coming on this morning. Appreciate it. My pleasure, Dan.
This transcript has been automatically generated and may not be 100% accurate.