Liverpool have reportedly suffered an injury blow with goalkeeper Alisson Becker likely to miss up to six weeks of action with a calf problem. Predicted Chelsea lineup (4-2-3-1) vs Manchester United, Barkley and Abraham start The Brazil international picked up the injury during the opening half of the Premier League curtain-raiser against Norwich City and he was thereafter replaced by debutant and summer signing Adrian. Thereafter, he was spotted leaving the ground on a wheelchair which presented doubts over an Achilles injury but The Express states that he has suffered nothing more than a calf injury. Still, the 26-year-old will miss up to six weeks of first- team action with the European champions, who are presently with just one fit senior shot-stopper in the form of Adrian. Former Preston North End goalkeeper Andy Lonergan could be handed with a short-term contract in the injury absence of Alisson. The 35-year-old was training with the Reds during the initial weeks of pre-season. Liverpool made an impressive start to the Premier League campaign with a 4-1 triumph over newly- promoted Norwich City at Anfield. The victory sees them second on the table behind Manchester City on goal difference.