The Undertaker lost the World Heavyweight Champion to Chris Jericho at W. W. E. Elimination Chamber 2010 after Shawn Michaels interfered.
As of TLC 2011, not only is undertaker not the world heavyweight champion, he is still not back from injury reserve after beating HHH at Wrestlemania 28
yip
no
The Undertaker was a 4-time WWE Champion, 7-time World Heavyweight Champion, 6-time undisputed champion and 4-time cruiser weight champion
Chris Jericho has won the World Heavyweight Champion 3 times. His latest World Heavyweight Champion win was inside a Elimination Chamber and he won that from The Undertaker after a interference from Shawn Michaels.
jinder mahal
The former World Heavyweight Champion is Big Show
if you mean is he world heavy weight champion the yes. but if you say in he the heaviest world heavyweight champion then no because yokozuna was
yes
chris jericho.
rocky balboa
Canelo Alvarez
Edge is the current heavy weight champion. He defeated John Cena at Backlash 2009 with the help of the Big Show
the undertaker