According to some reports, Undertaker was supposed to make his WWF/WWE debut under the ring name The Eggman. For this purpose, in the early 90’s, WWE would keep a big egg on display at various events. However, the idea was dropped later, which perhaps saved Taker’s career. Calaway then made his WWE debut under the ring name Kane The Undertaker.
Although Sting wrestled Mark Calaway in his pre-Undertaker character, "Mean" Mark Callous, at untelevised WCW live events in 1990, WWE viewers clamored for a televised Sting vs. Undertaker match. Ultimately, Sting re-signed with TNA, and on the February 21, 2011 Raw , the Undertaker returned to begin a feud with Triple H .