Liverpool boss Brendan Rodgers was pleased for Simon Mignolet after his cleansheet in victory over Stoke City.
The Belgian made one brilliant close-range save to deny Mame Biram Diouf just before Johnson struck while Bojan Krkic also hit a post.
"He has made a couple of great saves. We asked him to simplify his game and do what he is good at, which is shot-stopping," said Rodgers.
"He came for a couple of crosses at the end when the pressure was on and he made a couple of great saves, and I am very pleased for him as he is a very good guy who is working hard at his game."
