Lesnar 's rapid rise to the top of WWE in 2002 led to a feud with The Undertaker , which involved a match at Unforgiven . The match ended in a double disqualification resulting in Lesnar retaining the title . Lesnar faced The Undertaker again , at No Mercy , this time in a Hell in a Cell match . Leading up to the match , in the storyline , Lesnar broke the Undertaker 's hand with a propane tank . Despite Heyman begging McMahon not to let The Undertaker use his cast as a weapon , the request was denied and the match went on as planned . In a match that saw both wrestlers and even Heyman covered in blood , it ended when Lesnar reversed an attempted Tombstone Piledriver into his finishing F @-@ 5 maneuver for the win . Six days after his Hell in a Cell match with The Undertaker , Lesnar successfully retained his WWE title in a handicap match with Heyman at the Rebellion pay @-@ per @-@ view against Edge .