"The manager made me feel confident about playing here".
The 23-year-old Mina, who was impressive in defence at this year's World Cup in Russian Federation where he also scored three goals, will rejuvenate an ageing Everton back line while offering a threat from set-pieces at the other end of the pitch.
The Brazilian signed from Watford in a mega deal earlier this summer.
The 25-year-old has been capped 29 times by Portugal and was part of the squad that won the European Championships in 2016.
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Allardyce, who was in charge of the club last season, has claimed he faced similar issues while he was at the Goodison helm.
Many Barca fans were against Gomes' signing even before he joined after a somewhat underwhelming second campaign at Valencia, and he has never been able to rediscover his best form at Camp Nou.
It has been a busy period for many and a hectic deadline day for the likes of Everton and Fulham, who got a few moves over the line before it was too late.
The club have managed to shift midfielders Wayne Rooney and Davy Klaassen to DC United and Werder Bremen respectively, with goalkeeper Joel Robles and centre back Ramiro Funes Mori moving to the La Liga.
Barcelona defender Yerry Mina is on the verge of completing a move to Everton after undergoing a medical in Spain, according to reports.
I chose Everton because of all the things I had heard about Marco Silva and after speaking to him I was happy with what he said to me.