Undertaker's biggest legacy may end up being his importance as locker room leader. The WWE backstage area has been his yard for two decades now, with his role being vital in the relations between "the boys" and management. Calaway is the voice of the collective wrestlers, the person who shows the rest of the talent how to conduct themselves. When a wrestler steps out of line it is traditionally Undertaker they must answer to. The example of this is the wrestler's court that used to be held backstage. If a talent misbehaved then he would have to answer to this kangaroo court, with Undertaker as judge. Punishments were varied, but even included Taker stopping a talent's push. That is the level of power this man wields between the locker room and the management level. More often than not, Undertaker's role of locker room leader has seen him helping wrestlers out. He is on the boys' side that ever slight bit more than he is with the suits. An example of this was when he stood up for Bret Hart following the Montreal Screwjob. Another example is when he went to bat for Steve Austin and ensured Shawn Michaels did the right thing at Wrestlemania 14. Over the years Undertaker has used his role as locker room leader to discipline the Hardy Boys and verbally berate an arrogant Batista into order. John Cena has had to take on board Taker's advice, and interestingly it is Cena who is widely tipped to take on Taker's role as WWE's main man one day. In some ways John is already doing that now, going to bat for CM Punk in 2011 and Daniel Bryan in 2013. Who knows, perhaps the transfer or power from Taker to Cena will be signified by a retirement match at a future Wrestlemania : Undertaker vs Cena. This is the one big match on the big stage that still needs to be done in the WWE, and would undoubtedly sell shedloads of tickets.