Sir Alex Ferguson, the Manchester United manager, has urged Wayne Rooney to relax more during the World Cup. Rooney has struggled to make an impact during the tournament so far, and his frustration was clear after Friday's goalless draw with Algeria when he criticised supporters who were booing the team off. Ferguson has managed to get the best out of Rooney at Old Trafford, and the Scot had some words of advice for the player. "Sometimes the expectation can be debilitating. I had that feeling. I spoke to Wayne Rooney and just said, 'relax and enjoy it'," he told The Sun. "I just sensed there was a tension in and around the camp from what I was hearing. I didn't watch the Algeria game, I was out with friends, but I just get a feeling that the expectation is affecting the England team. "It's been a disappointing World Cup, but I had a feeling it would be. I have been disappointed with the quality levels, I haven't been impressed at all. "The season we have in Europe, particularly in England, is tough. The players met up about three to four days after the season finished and they have been together for most of that time, after a long, hard season. "It's a real task to ask players to perform at the best level they can achieve after the season in England."