Mina, for whom Barca have retained a buy-back option, said the chance to play alongside Gomes and Lucas Digne - who made the same switch last week - played a part in his decision to join Marco Silva's men.
Everton had a dramatic end to the window, wrapping up deals for Bernard - the Brazil global who arrived on a free from Shakthar Donetsk - and Andre Gomes, the Portuguese midfielder who had also been at Barcelona.
The free signing of Brazilian midfielder Bernard was confirmed after a work permit was granted.
One of Mina's goals in Russian Federation was against Everton's England goalkeeper Jordan Pickford to send a dramatic last 16 tie into extra-time.
Mobile back to price competition in 'unlimited'
During congestion, Essentials customers may notice speeds lower than other customers and further reduction if using 50GB/month. Most unlimited plans allow you at least 22GB of data before being throttled, while T-Mobile and Sprint hit the brakes at 50GB.
Persied meteor shower peaks this weekend
The Perseid meteor shower may be an annual event, but it's such an exciting celestial show that it's always worth another look. As meteors enter the earth's atmosphere they leave streaks of light in the sky, which some people call shooting stars.
India vs England 2nd Test Day 1 live updates
He picked up five wickets and scored 97 runs to be decisive in the low-scoring contest at Birmingham. India batsmen need to produce a better show in the second Test to give a tough fight to England .
Tribune Media scraps Sinclair deal
The American Cable Association (ACA), which represents small- and medium-sized cable companies, also cheered Tribune's decision. Tribune Media would be on the hook for a $135 million breakup fee, according to the agreement reached a year ago .