Real Madrid are the latest team to show an interest in Chelsea defender Antonio Rudiger.
The German is in the last year of his contract, as his current deal expires in the summer of 2022.
Real have now joined Bayern Munich in the race to sign Rudiger in the summer, according to reports in Spain.
Considering his contract situation, the centre-back can even speak to teams about a pre-contract in January.
Chelsea are still hopeful about tying him down to a new contract, but his wage demands are thought to be an issue.
Rudiger is a key member of Thomas Tuchel's five-man defence at present.