Manchester United goalkeeper Anders Lindegaard is expected to miss around four weeks with an ankle injury. GettyImagesAnders Lindegaard is expected to be out for around a month • Fergie hopeful on Rooney and Nani• Man Utd 2-0 Stoke City Lindegaard, who has recently moved ahead of David De Gea in the pecking order at Old Trafford, damaged ankle ligaments in training on Monday and appears unlikely to feature for another month. With De Gea ruled out through illness, Sir Alex Ferguson handed Ben Amos his Premier League debut in Tuesday's 2-0 victory over Stoke, and the 21-year-old is desperate to prove he is ready for more first-team action. "I've been waiting a long time for an opportunity," Amos said. "I'd like to think I've made the most