Recruitment across Europe has shifted toward players who can arrive without the price tag attached to the biggest leagues. Estoril has often been the kind of club where sharper operators look for value, and Tsoungui appears to fall into that bracket.
He is reportedly on the radar rather than on the verge of a move, but the logic is easy enough to see:
That is the appeal of this kind of chase: one club may see a first-team option, the other may see a development piece who can rise fast.
For Rangers, the attraction would likely be clear. They operate in a title-driven environment where physicality, consistency and composure matter immediately. Any incoming midfielder has to cope with expectation from day one.
For Southampton, the calculation can be slightly different. English clubs in that tier often balance short-term squad needs with the resale market. A player arriving from Portugal can be viewed as both depth and a longer-term investment if the adaptation goes well.
For now, this remains one to monitor rather than one to call. The report says both clubs are interested, but interest and agreement are very different stages of a transfer story. As the window develops, the next clues will be whether Rangers or Southampton push beyond scouting and into formal talks - and whether Estoril are prepared to sell.