The Manchester United striker is on loan at Blackburn for the season and smashed three goals past Norwich in the Carling Cup.
He will try to help his Old Trafford team-mates' title chances against the Gunners at Ewood Park on Saturday by being even sharper.
Diouf could have scored more against Norwich.
He said: "You remember the misses and try to make it better next time. Three is never enough."