Manchester United are interested in Lens fullback Jonathan Clauss.
The France international is also a target for Chelsea.
The Evening Standard says the defender caught the eye of the Blues last year and has been scouted by the club ever since, however, the Red Devils have now made an approach for the £8milllion-rated star.
Both sides are in the market for a new wide-defender with Chelsea set to lose the experienced Cesar Azpilicueta and Manchester United's new boss Erik ten Hag keen to offload £50m man Aaron Wan-Bissaka.
Azpilicueta looks set to join Barcelona after agreeing personal terms, however the Catalan side are yet to match Chelsea's £7m asking price.