Mainoo’s fresh Man United start under Carrick gives Napoli transfer warning

Kobbie Mainoo played the full 90 minutes in Manchester United’s win over Manchester City on Saturday, a sign that Napoli’s hopes of landing the England midfielder could already be fading.

Manchester United midfielder Mainoo started his first Premier League game this season on Saturday, in a 2-0 win over city rivals Manchester City.

The 20-year-old played the full 90 minutes at Old Trafford and was praised by new Manchester United coach Carrick before and after the game.

Man United...