Lemi's two tries helped Bristol edge to victory
Bristol (12) 22
Try: Lemi (2), Cox
Cons: Gray (2)
Worcester (17) 17
Try: Tucker, Delport
Cons: Drahm (2)
Two tries by David Lemi sent 14-man Worcester to defeat at Bristol, as Craig Gillies was sent off late on.
A Worcester penalty in a threatening position was turned over after Gillies stamped on Joe El-Abd, who was yellow carded for holding his ankle in a ruck.
Lemi and Sam Cox scored to give Bristol an early lead but tries by Mark Tucker and Thinus Delport gave Worcester hope.
The lead given by Lemi's second and a drop goal by David Gray looked perilously slim until Gillies saw red.
Worcester director of rugby John Brain:
"We mauled it forward and we had an advantage so it's extremely unfortunate to give that up because I felt that we could snatch the game.
"I don't think that we deserved to win this game.
"We did pretty well but I think Bristol controlled possession and position better than us."
Bristol: Arscott; Robinson, Brew, Cox, Lemi; Gray, Perry; Hilton, Regan, Crompton; Llewellyn (capt), Winters; To'oala, El Abd, Blowers.
Replacements: Linklater, Clarke, Hohneck, Budgett, Nicholls, Strange, Lima.
Worcester: Drahm; Havili, Rasmussen, Tucker, Delport; Brown, Powell; Morris, Fortey, Horsman; Gillies, Murphy; Horstmann, Sanderson, Hickey.
Replacements: Windo, Lutui, Blaze, Quinnell, Runciman, Lombard, Best.