Suarez is now available after a ten match ban.
"How he has prepared himself over the last number of weeks has been fantastic," said the Reds boss, who will decide in the next 24 hours whether Suarez starts at Old Trafford.
"He's really champing at the bit to help the team.
"Everyone knows the depth of his quality and his attitude.
"He is non-stop and he has commitment and I am sure once he gets back on the field again he will show what he has shown since he's been here, which is top quality.
"He played a behind-closed-doors game against Burnley and we had a lot of our younger players in that because some of the older ones had played a reserve game the night before.
"I know a lot of players who would've decided to come and train that morning but he loves the game and he lives for the game and he put everything into that.
"It is what we expect because that is the type of character he is."