Southampton manager Ronald Koeman believes the club may have trouble keeping Sadio Mane at St Mary's following his performance in the 3-1 victory over Chelsea.
Senegal international Mane has been in excellent form for the Saints this season and scored his fourth goal of the campaign in the victory at Stamford Bridge on Saturday.
Southampton did well to hang on to the former Red Bull Salzburg man amidst intense interest from Manchester United during the last off-season and Koeman admits they could eventually lose the 23-year-old, particularly if he maintains his sublime form.
"OK, maybe one day we will lose Mane but then we have to be prepared," he is quoted as saying by the Daily Echo.
"You know in our situation that kind of players, if they play like today, there will come a lot of interest in the end of the season. But now we enjoy watching Mane in our team.
"He is very fast and he is showing also now to be very clever out of his positions. I think he changed well the position in front and it was difficult for Chelsea to defend well.
"Of course, then if you play good football, you need that kind of player on the top level they can bring. He was fantastic."