The agent of Chelsea assistant manager Gianfranco Zola has rubbished claims of Maurizio Sarri under threat of the sack.

Fulvio Marrucco insists Sarri has met the club's objectives this season.

He told Radio Marte: "I'll say this, the rumours have been mounted and fed, in reality it does not exist. Of any subject, player, president or coach, if we go to extrapolate a few tweets or posts on Facebook we will certainly find criticism.

"Sarri has achieved the two main objectives, the return to the Champions League and the development of some young players who should then constitute the backbone of the team."