Manchester United beat Bolton 2-1 to return to the top of the Premier League Saturday after Chelsea tossed away the lead and lost 2-1 at Aston Villa. A fifth-minute own goal by Bolton defender Zat Knight and Antonio Valencia's first United goal put the defending champion on the road to a seventh victory. Matthew Taylor replied late for Wanderers at Old Trafford. United now has 22 points from nine games. Aston Villa came from behind to beat Chelsea with headed goals from center backs Richard Dunne and James Collins. After Villa goalkeeper Brad Friedel blundered to let in a 30-meter shot from Didier Drogba in the 15th minute, Dunne equalized with a diving header in the 32nd and Collins scored his first goal in four years in the 52nd. It was Chelsea's second away loss in a row in the league after a 3-1 defeat at Wigan three weeks ago. The Blues, who led the standings going into Saturday's games, remain on 21 points after nine games. Villa has 16 from eight. Liverpool tumbled 1-0 at Sunderland thanks to a freak fifth-minute goal by Darren Bent, whose shot took a deflection off a fans' balloon which had drifted onto the pitch. It was Liverpool's fourth defeat in nine games and Rafa Benitez' team is drifting out of title contention. Tottenham won 2-1 at last-place Portsmouth and is third with 19 points. After a rare goal by defender Ledley King, former Portsmouth striker Jermain Defoe put the visitors two goals ahead before he was sent off late in the game for retaliating violently to a foul. Portsmouth then had Michael Brown sent off. Fourth-place Arsenal has 18 points from eight games after beating Birmingham 3-1 at Emirates Stadium with goals by Robin van Persie, Abou Diaby and Andrei Arshavin. An equalizer two minutes from the end by Diniyar Bilyaletdinov earned Everton a 1-1 draw at home to Wolves after Kevin Doyle had netted for the visitors. Wolves' tall Austrian striker Stefan Maierhofer was sent off in the final minute for a second yellow card. Stoke edged West Ham 2-1 with goals by James Beattie. Juve draws with Fiorentina In Milan, Amauri scored an equalizer for Juventus to draw 1-1 at home with Fiorentina in the Serie A Saturday. Amauri scored from close range in the 19th minute, 13 minutes after Juan Vargas had scored for Fiorentina. The result leaves both teams on 15 points. Genoa has 13 points and can go above them into third place if it wins later at Inter Milan, which leads with 16 points. “I'm happy with my goal, if not the result,” Amauri said. “We should have done better. We have to try and do better.” Fiorentina took the lead when Stevan Jovetic cut in from the left wing. The Montenegrin slipped the ball behind the defense, and Vargas flicked the ball over goalkeeper Gianluigi Buffon. Juventus striker Vincenzo Iaquinta then passed up two opportunities to draw his side level. First, he shot straight at goalkeeper Sebastien Frey after having turned defender Massimo Gobbi. Then, in the 18th he sliced the ball wide from close range, after Fabio Grosso had found space to cross from the left wing. Iaquinta was involved when Juventus equalized in the 20th. Christian Poulsen picked him out behind the defense, and he squared for his strike partner Amauri to tap into the empty net. Fiorentina felt it should have had a second when Vargas curled home a free kick, but the goal was ruled out for Dario Danielli fouling Giorgio Chiellini. In the second half, both sides seemed to content to save energy for upcoming Champions League matches.