Barcelona are watching Rennes prospect Ismaila Sarr this season.

L'Equipe says Barca have been scouting Sarr since his €17m move last summer from FC Metz.

The 20 year-old, a senior Senegal international, has scored four goals this season and produced three assists.

Sarr is tied to Rennes until 2021 and won't come cheap for Barca.

However, the Catalans are considering testing the French club's resolve with a bid for the youngster this summer.