Rudi Voller has quit as coach of AS Roma after their 3-1 defeat away to Bologna, the Serie A club has confirmed. Under the former Germany coach, Roma had taken just four league points from a possible 12.Voller, who played for Roma between 1987 and 1992, was drafted in as coach last month after Cesare Prandelli left the post to take care of his sick wife. Prandelli took the job from Fabio Capello, who left at the start of the summer to take charge of Juventus. (AFP)