Burnley have completed the signing of Brentford defender James Tarkowski for an undisclosed fee.
The 23-year-old made himself unavailable for the Bees' game against Burnley in January, which Sean Dyche's side won 3-1, after rumours of a move to Turf Moor.
The former Oldham centre-back, who has signed a three-and-a-half-year deal, had since returned to training.
He is not available for the game against Sheffield Wednesday on Tuesday.
"James is a player I have known for a couple of seasons and I've monitored his progress from Oldham, right the way through to now," boss Dyche told the club website.
"He is at a good age, has gained a lot of experience over the last couple of seasons and I feel he can be a big part of us going forwards in the future."
The Bees have also announced Ryan Williams, Montell Moore and Josh Laurent have left the club by mutual consent.
Find all the latest football transfers on our dedicated page.