No boxing event is complete without an appearance from Shannon Briggs No boxing event is complete without an appearance from Shannon Briggs

Shannon Briggs gatecrashed the open workout for the fighters on the Anthony Joshua versus Charles Martin undercard on Tuesday.

Briggs gatecrashed David Haye's press conference on Wednesday, calling the former WBA world champion out.

And now 'The Cannon' (59-6-1-KO52), showed up to the open training session at the York Hall in Bethnal Green ahead of Joshua's Sky Sports Box Office world tittle challenge against Martin on Saturday night.

Watch what the 44-year-old American had to say for himself by clicking on the video above.

Charles Martin vs Anthony Joshua, live on Sky Sports Box Office on April 9, is available to order via online.