Torres, 26, has been the sharper of the two cases to answer. Given every opportunity to nail down the centre-forward role this season — often preferred over Robert Lewandowski — the Spain international has not scored since January 31 against Elche.
No renewal talks have taken place, and with his contract expiring in 2027, this summer represents Barcelona's last realistic chance to extract significant value. His market value is estimated at around €50 million, and Atlético Madrid have been mentioned as a potential destination, with Torres mooted as a makeweight in any deal for Álvarez. Inter Milan are another option, in a possible swap involving Bastoni.
Casadó's situation is less clear-cut. The 22-year-old midfielder was one of Flick's revelations last season, earning his Spain debut on the back of impressive displays against Bayern Munich and Real Madrid. This term he has faded, dropping behind Marc Bernal and a returning Gavi in the pecking order.
Barca have a deal until 2028, which gives them leverage, but his playing time has dwindled and interest from Saudi Arabia has surfaced. He too has been suggested as a potential makeweight in a Cancelo permanent deal with Al Hilal.
Together, the two sales would go a long way towards funding a summer that Barca need to get right. Lewandowski is expected to stay in a reduced role, which makes the striker position a priority regardless of what happens with Torres. The Bastoni pursuit, meanwhile, is already running into Inter's stubborn valuation.