David Moyes is determined to 'crack the code' and get Kalvin Phillips back to top form with West Ham.
Phillips has endured a difficult start to his loan spell in east London and was left out of Gareth Southgate's latest England squad on Thursday.
But Moyes believes he can solve the puzzle and rediscover the player who Pep Guardiola spent £42million on to take to Manchester City 18 months ago.
'I'm speaking to him regularly, he's such a good boy to talk to as well.