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Roberto Martinez insists he will keep his trust in youth as he makes his final preparations to lead Everton FC into the new season.

The Blues boss has been impressed with the club’s crop of talented youngsters during their USA tour , and included three teenagers in his starting line-up for their final game against Valencia on Tuesday.

And the Catalan envisages all three – Ross Barkley , John Stones and Gerard Deulofeu - having important roles during his debut campaign at the Goodison helm.

He said: “I saw a lot of our young players and they’re going to have big roles in our season so in that respect I’m very pleased.

“I’ve taken a lot of information in.”

In pictures: John Stones stars against Juventus

Martinez admitted he would have been happier to finish the tour on a winning note, even if he has generally insisted results are secondary in his thinking throughout their participation in the International Champions Cup.

But he was pleased to report no serious injuries and a clean bill of health for his squad, with Nikica Jelavic suffering only a dead leg and likely to be fit to be involved against Real Betis on Sunday.

“Of course we wanted to win and we had opportunities.” he added, after the Toffees ended the tournament in sixth place - ahead of Juventus and Inter Milan. “The way the weather was the first goal was always going to be vital.

“Whoever scored first could keep the ball and open the spaces. Then we needed to find the energy we hadn’t got. We never lost our work ethic though, and we kept pushing.

“We’ve had a perfect work out, a perfect run of games. Valencia were tough opponents who can do a bit of everything.

“I knew it was going to be a very difficult exercise because we’ve completed a lot of work. My main concern was that we didn’t pick up any injuries, and thankfully Nikcia Jelavic only had a dead leg so that aside it’s been a real success.”