Liverpool boss Jurgen Klopp has big concerns for Alisson after victory over Norwich City.
The Reds began their Premier League campaign with a comfortable 4-1 victory over the newly promoted Canaries at Anfield.
However, it came at a price, as Brazilian stopper Alisson, one of their star performers last season, was forced off injured after slipping while taking a goal-kick midway through the first half.
He was able to leave the field unaided, but had to be replaced by Adrian, the Spanish goalkeeper who was signed on a free transfer this summer after being released by West Ham.
"With Alisson it is not good but we will find a solution and move on," Klopp told the BBC. "He felt his calf. He looked behind him because he thought something hit him.
"But Adrian is a good goalie. In possession he is calm and he is good at shot-stopping, that's why we signed him. It's good for him but we have a little problem with Ali."
