Chelsea boss Jose Mourinho has told a frustrated Juan Mata to follow the example of Michael Essien.

Ghana midfielder Essien, who spent last season on loan at Real Madrid under Mourinho, was not named in Chelsea's Champions League squad and will on Tuesday night make his first appearance of the season at Swindon in the Capital One Cup, when World Cup winner Mata will also feature.

Mourinho has not been swayed by Mata's reputation as Chelsea player of the year in each of the last two seasons and demands more.

"He's not the same as Essien," Mourinho said.

"Essien didn't play one single minute and I left him out of the Champions League list."