AC Milan coach Carlo Ancelotti said he gave Ronaldinho the thumb up to hang out on Sunday from night till dawn. The Brazilian playmaker, who is currently injured, spent the night out with compatriot Adriano, who plays for Inter Milan. “I didn't know he was out with Adriano, but he had my permission to stay out until 5am,” Ancelotti told Calcio Italia. The former Barcelona star got back one hour earlier before the imposed 'curfew', which prompted the Italian tactician to make a joke about him. “He was back at 4am? Maybe he didn't like the club they were in." Meanwhile, Ancelotti is keen to register a Serie A win over Siena to pile up pressure on arch-rivals Inter Milan. The Rossoneri lie fourth in the table with 16 points, one point behind the leading Trio Udinese, Inter and Napoli. “Obviously we are hoping for Inter to draw against Fiorentina or away to Reggina this weekend. "But we are focused on Siena and we must make sure we do our job”.