Manchester City boss Pep Guardiola has hailed Nicolas Otamendi as "a superman," with sources telling ESPN FC the defender is set for a new deal.

The Argentine has been outstanding form this season as City has built a lead of 15 points at the top, helped by the fact that they have conceded the fewest goals of any team in the Premier League.

Otamendi, 29, has made more passes than any player in the league and in Wednesday's victory over Newcastle United, he made only 10 passes fewer than the entire home side.

The centre-back signed a five-year deal when he joined from Valencia in 2015 but is set for talks over an extension, and Guardiola says they would not be so clear at the top without him.