Martinez currently has young defender Shane Duffy on loan at Yeovil Town, but the Spaniard does not believe following the Irishman will help Stones break through at Goodison Park.
?I think he can develop here fighting for his place,? said Martinez. ?He?s earned that and I don?t think he needs to go out on loan and play.
?Here he is learning on a daily basis from Jags (Phil Jagielka) and (Sylvain) Distin, and that?s exactly what he needs.
?He?s not the same player from pre-season, he?s already gone to a different level.
The 19-year-old signed for David Moyes? Everton earlier this year from Barnsley.
The defender cost Moyes ?2.5m but Martinez wants to make the defender one of ?his? players now.
?Every player is an individual and needs different things,? he said.
?John has had first team experience. He played enough with Barnsley in the Championship to know what to expect.?
?He?s got an incredible future which we?re all excited about and we?re looking forward to him fighting to see how quickly he can get in the team.?
Stones, an England u-21 international, played 24 times in the Championship for Barnsley and with this boost will be hopeful of securing a first Premier League start soon.
Source: DSG
Source: DSG