'My brother': actor Jack Black pays tribute to Nacho Libre co-star ...

Hollywood actor Jack Black has paid tribute to a former WCW wrestler who died in the ring in front of a packed London audience.

Silver King had starred in the 2006 comedy Nacho Libre alongside Black and was performing at the Roundhouse Theatre in Camden when he collapsed.

Posting on Instagram to his 4.3 million followers, Jack Black said: 'César González ... go with God, brother.' 

This is while Eastenders' Jake Wood, also paid tribute, after he had been at the front row of the theatre when the tragedy happened.

Jack Black took to Instagram to post this picture of Silver King, following his death over the weekend

Jack Black took to Instagram to post this picture of Silver King, following his death over the weekend 

Silver King

Roundhouse

The Mexican wrestler - real name Cuauhtémoc González Barrón (left) - starred in comedy Nacho Libre in 2006 and was performing at the Roundhouse on Saturday night (right)

Silver King collapsed at the Roundhouse before other wrestlers surrounded him and started to perform CPR

Silver King collapsed at the Roundhouse before other wrestlers surrounded him and started to perform CPR

He posted a picture of the fighter with the caption: 'Shockingly my family and I were front row at @roundhouseldn last night when legend of the wrestling world Silver King aka César Barrón lost his life in the ring. Thoughts and prayers to his family and friends, so sad #rip #silverking #roundhouse #luchalibra #nacholibra #cesarbarron.'

Silver King was up against ex WWE star Juventud 'The Juice' Guerrera when the incident took place on Saturday night.

Moments after the fighter collapsed, other wrestlers surrounded him and began desperately performing CPR while the audience were ushered out of the arena.

Jake Wood, who plays Max Branning on Eastenders paid tribute to the wrestler and said he had been in the audience that night

Jake Wood, who plays Max Branning on Eastenders paid tribute to the wrestler and said he had been in the audience that night

Jake Wood also posted this picture and said: 'Thoughts and prayers to his family and friends, so sad, RIP'

Jake Wood also posted this picture and said: 'Thoughts and prayers to his family and friends, so sad, RIP'

Reports in Mexico have suggested that King had had a heart attack during the battle. 

He had stayed down despite attempts by the referee to revive him. 

The World Wrestling Council confirmed on Twitter

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