Chelsea No2 Ray Wilkins is expecting more from Salomon Kalou next season.
The Ivory Coast attacker played a more influential role as the season went on in their Double triumph.
Wilkins told chelseafc.com: "A very nice young man who can be a joy to watch when he's on form.
"Sala came into form at the right time and scored some valuable goals for us, it was particularly pleasing to see him score his first Chelsea hat-trick against Stoke."