Elsewhere, both Manchester City and Chelsea have also been monitoring his performances as they weigh-up a potential move at the end of the season. 9; £35m fee with Monaco for midfield star Tiemoue Bakayoko on lucrative five-year dealinter and outInter Milan may be worst team ever for selling players before they reached their prime Perez is up for re-election this year and although he is not likely to face much opposition, the billionaire wants to make a splash in the transfer market after two quiet summers. Jose Mourinho is also an admirer and could rival Blues or City – who have the second-most expensive defender in history having shelled out £47. But it appears the neighbours will have to move fast if they are to land the highly-rated youngster. The 24-year-old defender has rejected a number of improved contracts at Burnley in the last 18 months, and will have a year left on his current deal in the summer. ATLETICO MADRID boss Diego Simeone admits he fears losing Manchester United target Antoine Griezmann after losing Diego Costa to the Premier League. 9; £35m fee with Monaco for midfield star Tiemoue Bakayoko on lucrative five-year dealinter and outInter Milan may be worst team ever for selling players before they reached their prime The Clarets have offered him a new and improved deal to remain at Turf Moor, but the opportunity to play for one of the big boys and challenge for trophies on a regular basis could prove too tempting to resist. The teenage French striker is the hottest prospect in world football and has been linked with a mega-money move this summer. Manchester United and City?have also shown interest in Bakayoko. A new forward is also wanted to compete with Lionel Messi, Luis Suarez and Neymar, with Atletico Mad.