Southampton managed to sign Sekou Mara from Bordeaux, completing their sixth signing during this summer transfer.
Sekou has signed a contract till 2026 with the Premier League club.
Mara found the back of the net on six occasions during his 26 games last season as Bordeaux finished bottom of the French top flight.
"Sekou is coming here to score goals," said Saints boss Ralph Hasenhuttl. "He has shown in the French league he can, now he needs to work hard and show he can do this in the Premier League."
He added: "He is a young guy who will need time to adapt to a new country and a new league, but we are excited about his potential and what he can become in the future."