UFC 167 could be the end of the line for one UFC big man. Former UFC champion Frank Mir and former Strikeforce champion Alistair Overeem square off in a feature bout at UFC 167 – the promotion’s 20th Anniversary event – but it could be the last time we see the loser in the Octagon. UFC president Dana White met with reporters at a media day scrum in Toronto on Thursday. When he was asked if it was a do-or-die situation for Mir and Overeem, he didn’t mince words.