Kansas City Chiefs defensive end Alex Okafor (chest) tore his pec in Week 15 against the Denver Broncos, NFL Network's Ian Rapoport report
Okafor will have an MRI on Monday to confirm, and if it is indeed torn, his absence would be a significant one for Kansas City.
He has 5 sacks and 22 tackles in 10 games this season.
Source: Ian Rapoport