Flo Combat first reported the news, it is unknown at this time as to how long Allen is expected to be out of action for, but more should be known as the fighter heals. Glenn is also expected to remain on the card at this time, as UFC officials are seeking a replacement opponent for him to fight.
Glenn (21-5-1) has won three of five during his UFC tenure, with those victories coming over the trio of Phillipe Nover, Gavin Tucker and Dennis Bermudez. Glenn is a former World Series Of Fighting Featherweight Champion, defeating Georgi Karakhanyan to win the gold at the WSOF 10. Glenn has suffered five losses as a professional MMA fighter, but none of those defeats have come by way of KO/TKO.
UFC Ultimate Fighter 28 Finale takes place on Friday, November 30 from the The Palms At The Pearl Concert Theatre in Las Vegas, Nevada with Kamaru Usman and Rafael Dos Anjos headlining. Fightful is providing live coverage of the event, which airs live on Fox Sports 1.