Lesnar's rapid rise to the top of WWE in 2002 led to a feud with The Undertaker , which involved a match at Unforgiven on September 22.  The match ended in a double disqualification ,with Lesnar retained 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.  At No Mercy, Lesnar defeated The Undertaker to retain the title, thus ending their feud.  Lesnar would go on to successfully retain the WWE Championship in a handicap match with Heyman against Edge at Rebellion on October 26.