Aldo Kalulu has joined on a season-long loan from FC Basel, subject to international clearance.
The speedy forward – who has Champions League experience, plus stints in the French and Swiss top-flights under his belt – becomes the fifth signing of the summer for head coach Steve Cooper.
He follows Jake Bidwell, Ben Wilmot, Freddie Woodman and Kristoffer Peterson in making the move to SA1.
The 23-year-old was born in Lyon and came through the ranks with the Ligue 1 club, making his debut against Lille in September 2015 and scoring his first goal later the same month against Bastia.
Kalulu also gained Champions League experience during his time with Les Gones, featuring against Gent and Valencia in that season’s group stage.
He started the following campaign at Lyon before joining Rennes on loan over the second half of the season, and then spent the 2017-18 season at Sochaux.
He enjoyed an excellent campaign in the French second tier, netting 11 goals in 31 league appearances.
His form attracted the interest of Swiss side Basel and he sealed a permanent move to St Jakob Park, making 17 appearances for them last season as they finished second in the Swiss Super League.
Kalulu will now look to showcase his speed and attacking flair in Swansea colours.