Bristol boss Richard Hill:
"It must have been a big haymaker to put that bull (Vickery) down - I'll have to have a look at that. It's not on if that was the case.
"It was a poor day all round for us against a Wasps side who were fired up. They played very well, very clinically and we gave too many penalties away.
"Thank God it wasn't a sunny day. The heavy conditions saved us from a 40-point hammering."
Wasps: Van Gisbergen; Lewsey, Waters, Waldouck, Voyce; King, Reddan; Payne, Ward, Vickery, Shaw, Palmer, Worsley, Rees, Haskell.
Replacements: Ibanez, Adams, Leo, Dallaglio, Amor, Brooks, Doherty.
Bristol: Taumalolo; Robinson, Brew, Higgitt, Lemi; Strange, Perry; Hilton, Regan, Crompton, Hohneck, Llewellyn, Budgett, El Abd, Lewis.
Replacements: Linkmater, Hobson, Winters, Blowers, O'Riordan, Gray, Morgan.
Referee: Roy Maybank