Chelsea are reportedly the only Premier League club to have offered a contract to Bayern Munich defender David Alaba.
The Austrian international's current deal expires this summer and he is expected to leave the club, following the arrival of RB Leipzig centre-back Dayot Upamecano in July.
90min reports that Real Madrid remain the favourites for Alaba's signature, although Chelsea are still interested in the 28-year-old and are the only English top-flight club at present to have tabled an offer.
Premier League champions Liverpool and Manchester City were understood to have previously been interested in Alaba, who is considering the possibility of playing in England, however both clubs made it clear to the player's camp that they have decided against a move for the defender.
Bayern are understood to want to keep the Austrian, although Alaba is now at the stage of his career where he wishes to seek a fresh challenge and would prefer to move to Spain.
Alaba, who has made over 400 appearances for the German giants since joining in 2009, has won nine Bundesliga titles as well as two Champions League triumphs.