Gabriel Paulista
Gabriel Paulista move to Arsenal is only subject to a medicalReuters

Villarreal have confirmed that Arsenal have reached an agreement with them over the transfer of their centre-back Gabriel Paulista, whose move to the Emirates is only subject to a medical.

"Ahead of the finalisation of some small contractual details on Monday, Villarreal and Arsenal have agreed the transfer of the Brazilian defender Gabriel Armando de Abreu," read a statement on Villarreal's official website. "Once the centre-half passes a medical he will join the London Premier League club."

The La Liga side also announced that Arsenal striker Joel Campbell will be moving to Villarreal on loan until the end of the season.

"Villarreal and Arsenal have reached agreement for the loan for the Costa Rican player Joel Campbell, who after passing the usual medical will play with the 'Submarine' until the end of the season," read another statement on Villarreal's official website.

According to the ESPN, the Gunners have agreed to meet the €20 million (£15 million) release clause in the Brazilian's current contract, minus the €1m (£750,000) loan fee for Campbell.

However, the Gunners still need to obtain a work permit for Paulista as the Brazilian does not qualify for an automatic visa due to him not having made any appearances for his national team at the senior level.

Meanwhile, Arsenal boss Arsene Wenger claims that his side's latest addition Krystian Bielik is a "huge talent", insisting that he has already started showing "positive signs" in training.

The Gunners recently signed the 17-year-old, who is being dubbed as the "new Patrick Vieira", from Polish side Legia Warsaw for an undisclosed transfer fee.

Although Wenger has confirmed that Bielik will not be featured for at least three weeks due to him not being fully fit, he claims that the youngster is already showing potential in training.

"I would say, considering his age, he's more one for the future," the 65-year-old Frenchman told Arsenal Player. "But let's be open minded and let [him] surprise us. The first signs that we see are very positive in training.

"Because they had the winter break in Poland, we are just at the starting point of building him up fitness-wise. He's a young boy and he has a huge talent."