Tottenham midfielder Yves Bissouma was robbed of his luxury watch by two assailants on Sunday.
The Mali international, 27, was with his wife outside a hotel in Cannes on the French Riviera when the mugging occurred at around 04:00 local time (03:00 BST).
Bissouma was returning to his hotel when two hooded men attacked him with tear gas and took his watch worth 300,000 euros (£255,000) before fleeing, his lawyer Bastien Caire confirmed following media reports.
Caire declined to comment further while an investigation is ongoing.
In a statement, Tottenham said: “We are aware of the incident that took place and we will continue to check on the welfare of Yves and his family.”
Bissouma joined Spurs from Brighton for £25m plus add-ons in the summer of 2022.
He made 28 appearances for the club last season, when they finished fifth in the Premier League and qualified for the Europa League.