Chelsea forward Cole Palmer's recent struggles on the pitch are "a mental thing", says boss Enzo Maresca.
The England international, 22, has not scored in 16 games - having netted 14 times in his first 23 games of the season.
Chelsea have slipped from second place to sixth - and out of the Champions League places - in that time.
But Palmer has had more shots than any other Premier League player during his goalless spell - 41 efforts.
"For sure it's a mental thing, it's not tactical or technical," said Maresca.
"Cole is still the player who scored 14 goals in 20 games.