By Hunter Hodies Chiefs head coach Andy Reid is still mum on if safety Tyrann Mathieu will be able to go next Sunday in the AFC Championship Game. Mathieu left Sunday’s game against the Bills in the first half with a head injury and then entered the concussion protocol after he was evaluated. On Monday afternoon, Reid confirmed that Mathieu is still in the protocol and that he’ll see how the week goes. This would be a massive loss for the Chiefs if he’s unable to go. Mathieu is arguably their best player in the secondary and had a spectacular regular season going into the playoffs. He finished…