Navas, a 32-year-old Costa Rican who won the Champions League three times in Madrid, joined PSG with the younger French international Alphonse Areola moving in the opposite direction on loan.

PSG also pulled a late rabbit from its sleeve late with the loan signing of Argentine striker Icardi "with an option to buy."

Icardi tied for top scorer in Serie A in 2017-18, but he was stripped of the Inter Milan captaincy last season and barred from full training. He started legal action against the club.

Barcelona was not entirely inactive, extending the contract of attacking midfielder Rafinha and then loaning him to Celta Vigo, where he also spent the 2013-14 season.

Even without a deadline blockbuster, La Liga clubs spent a record $1.7 billion on players including Eden Hazard, Rodri and Ferland Mendy to Real, Antoine Griezmann and Frenkie de Jong to Barca and Joao Felix to Atletico Madrid.

Manchester United sold 29-year-old Italy fullback Matteo Darmian to Parma.

The fee was reportedly $1.7 million.