Turin:Serie A leader Juventus was held to a 1-1 draw by newcomer Palermo, losing its perfect record in the fourth round. The Sicilian team, which has been off to an impressive start in Italy's top league, led 1-0 at halftime yesterday on a perfect 16th-minute header by defender Cristian Zaccardo. Newly signed Sweden striker Zlatan Ibrahimovic netted the equaliser in the 52nd off a save by Palermo goalkeeper Matteo Guardalben at Turin's Delle Alpi stadium. Juventus' home draw gave it 10 points and an undisputed lead in the standings. Palermo, in the top division after 31 years, put Juventus' defence in trouble although it was missing its injured top striker Luca Toni. AS Roma stunned At Dall'Ara stadium, nine-man Bologna withstood a second-half siege and stunned title favorite AS Roma 3-1. Rudi Voeller, AS Roma's German coach, resigned his post following the team's second loss in four matches. At Bologna, French midfielder Mourad Meghni scored two goals and Italian striker Giacomo Cipriani added another before being ejected to give the home team a 3-0 first-half lead. Playing with just nine players after Greece midfielder Theodoros Zagorakis was sent-off early in the second half, the Roman team attacked in full force. Roma striker Vincenzo Montella had one goal disallowed and newly signed Mido struck the post in the closing minutes as Bologna put up a defensive wall to clinch its second consecutive win. Veteran goalkeeper Gianluca Pagliuca helped with a series of great saves. Bologna lifted itself to six points in the standings, tied with Palermo with AS Roma having four points, six behind Juventus.