UFC 121 Brock Lesnar VS Cain Velasquez - Saturday 23rd Oct, Honda Centre, L.A.All you MMA fighting fans out there better get ready for a storm blowing your way this Saturday 23rd Oct, at Honda Centre, L.A. The spotlight will be all on UFC 121s championship fight between defending heavyweight champion Brock Lesnar, against the rising MMA menace that is Cain Velasquez. Both these monsters are gearing up for what is touted as one of the most exciting MMA fighting match this year.