David Strettle's embarrassing mistake handed Wasps' Joe Simpson a late Christmas gift after just five minutes.
Chris Robshaw increased the advantage after the break while Joe Simpson scored a consolation try for Wasps.
James Gaskell, Courtney Lawes, Andy Saull, Joe Simpson and Ben Youngs are the Discovery of the Season nominees.
The clubs combined TV crews to show the resumption, with Mets announcer Keith Hernandez working with Braves broadcaster Joe Simpson.
"I can honestly say I didn't see it but Joe Simpson's nose looks like there was a head-butt, " he said.
But Henson almost made it a fairy-tale return, denied a try only by a stunning tackle by Wasps scrum-half Joe Simpson.
Joe Simpson livened up a lacklustre opening half with a wonderful try just before the break to help the visitors to a nervy 7-3 lead.
Meanwhile young scrum-half Joe Simpson, whose superb recent form had seen him earmarked as a possible contender for Johnson's squad, faces three months out of the game.
Wasps centre Steve Kefu had just fired a kick directly into touch when Robson became embroiled in an off-the-ball scuffle and aimed a head-butt at Wasps scrum-half Joe Simpson.
Wasps looked shell-shocked and things went from bad to worse when scrum-half Joe Simpson, who had a lively game, dropped a try-scoring pass from David Lemi five metres from the line.
Wasps scrum-half Joe Simpson was the star of the show, playing havoc with the Bath defence and helping to create both of Varndell's touchdowns, the second after he made a 60m break.
The others are Leicester duo Anthony Allen and George Chuter, Wasps pair Joe Worsley and Tim Payne, Gloucester's James Simpson-Daniel and Paul Doran-Jones, Saracens wing David Strettle and Harlequins flanker Chris Robshaw.
Fellow defender Ryan Bennett and goalkeeper Joe Lewis should play having shaken off knocks, but Josh Simpson and Exodus Geohaghon are cup tied.
应用推荐