In July 2008, as a non-contract player, he returned to Austria for another spell with FC Red Bull Salzburg, but before the season started he had signed for Udinese Calcio, where he replaced the Juventus-bound Antonio Chimenti. However, in a career of brief moves, he stayed with the north east Italian club for just two weeks before being signed by Juventus as backup for Gianluigi Buffon and Chimenti in August 2008. A long-term injury to Buffon resulted in Manninger playing for the first XI from early October 2008 through to late February 2009. During his tenure with Juventus, Manninger made thirty-five appearances in all competitions, drawing praise in the media for his performances. Following an injury to Buffon during the 2010 World Cup, Juventus signed Marco Storari from Milan in the summer of 2010, and Manninger was demoted to the role of the club's third–choice goalkeeper. He was released at the end of the 2011–12 season, following Juventus's league title victory.