Jonny Evans is on the verge of leaving Manchester United with Everton reportedly set to sign the defender for a fee in the region of £8m ($12.5m), according to a report in the Guardian.

The Northern Irishman, who has just one year left on his current deal, has been deemed surplus to requirements by Louis van Gaal and will be allowed to leave, thus ending his nine-year stay with the Old Trafford outfit.

United have three senior central defenders on their books in Phil Jones, Chris Smalling and Morcos Rojo, with youngsters Paddy McNair and Tyler Blackett providing the backup.

The Dutch manager is looking to bolster his backline further and has been heavily linked with a move for Sergio Ramos, with reports in Spanish publication AS suggesting that the 20-time English champions are planning to make a fresh offer to bring the Spaniard to England.

Evans, who has made 198 appearances for the club since his debut in 2007, fell out of favour under the Dutchman and will be offloaded to Everton, who are keen to reinforce their backline and find a long-term replacement for Phil Jagielka.

United are reportedly looking to get £10m ($15.6m) for the defender, while Everton value him at £6m ($9.3m), due to the length of his contract, but is believed that a compromise will be reached by the two clubs, and the move is expected to be completed in the coming days.

Evans is currently with United squad on their pre-season tour of the US as they prepare to take on Club Americas in their first encounter of the International Champions' Cup tournament.

The 27-year-old defender will become United's eighth summer departure following the exits of Robin van Persie, Nani, Tom Cleverly, Ben Amos, Saidy Janko, Tom Thorpe and Will Keane. Out of the seven departures, Keane is the only one that has moved on a temporary basis to Preston North End.