Craig Dawson has reportedly handed in an official transfer request at West Bromwich Albion.
Dawson has made 180 appearances for West Brom since joining the club from Rochdale in 2010, with more than 150 of those matches coming in the Premier League.
The 28-year-old has been linked with a move away from the Baggies following their relegation to the Championship, with West Ham United among the clubs holding an interest.
The defender has reportedly refused to fly out for the team's pre-season training camp in Portugal, and according to Sky Sports News, Dawson has now handed in an official transfer request.
Last month, it was reported that West Brom were not prepared to sell Dawson on the cheap, with West Ham said to have had a £12m bid rejected earlier this summer.