'Time has come to let The Undertaker rest in peace': Fans sad at WWE legend's 'Final Farewell'

After 30 years of entertaining fans across the globe, The Undertaker aka Mark Calaway has officially retired at WWE's Survivor Series on Sunday. The man who made his debut at Survivor Series, 1990, walked out to the ring for one "Final Farewell", with several of his contemporaries coming out to pay tribute to the legendary...