Hugo Lloris has fractured his wrist and faces a race against time to be fit for the start of the season.
Tottenham - who begin their Premier League campaign at Manchester United on August 8 - confirmed the news on Monday, releasing a short statement.
"The club can confirm that Hugo Lloris has sustained a fractured wrist during the close season period," it read.
"The France goalkeeper will continue to work alongside the first team squad to build up his fitness in a bid to be ready for the start of the season.
"Our medical team will continue to monitor his rehabilitation and progress during pre-season."
The news will come as a significant blow for Spurs, and potentially United, who are rumoured to be interested in signing the keeper if David de Gea departs for Real Madrid.
