Surely this is a complete no brainer if Gundo wants to return?
The perfect 8/6 cover, loved by the squad, an instant leadership boost and we can likely get rid of Cancelo in the process (potentially with a bit of cash on top?).
I'll be baffled if we hear of reports saying Gundo was game, but we decided we didn't want it.
The market for the type of midfielder we need is slim to none (unless we're ready to spaff £100m on Bruno). Get Gundo back for 1-2 years and it gives us time to plan around that.
Even if it's a straight loan swap for Gundo and Cancelo, with both clubs covering salary of each, it solves a problem for both us and Barca.