Smith and Mark Viduka started the match as United's strike force, the pair renewing their partnership that saw 74 goals in 90 matches for Leeds United.
Geremi was given the captain's armband.
It was lively encounter, with Devecchio and Nicky Butt squaring up to each other in the first half as tackles flew. But the first half ended 0-0 with Steve Harper replacing Shay Given on 38 minutes.
Smith should have scored in the 51st minute but his tap-in goal was ruled offside, when video footage later showed he was on-side.
He scored his goal heading in from a left-wing corner taken by Geremi.
Oba Martins, a second-half substitute, had a call for a penalty when he clattered by the goalkeeper.