Both Chelsea and Tottenham Hotspur are reportedly interested in Ajax youngster Jurrien Timber.
The 20-year-old made three appearances for the Netherlands at this summer's European Championship and is now a key player for his club, already making four outings this season.
According to 90min, Chelsea and Spurs are keeping a close eye on the centre-back's development as they weigh up moves during next summer's transfer window.
The report claims that both London clubs have been monitoring Timber over the last two years, and the Dutchman is becoming aware of the growing interest in his services.
Paris Saint-Germain, Lyon, Monaco, Borussia Dortmund and RB Leipzig are also believed to be admirers of the defender, who has a contract with his current club until June 2024.
Timber - also capable of operating as a right-back or a left-back - has scored once in 35 appearances for Ajax in all competitions.