Barcelona have identified Sporting's Portugal centre-back Goncalo Inacio, 24, as their top target to strengthen their defence, but would need to pay 70m euros (£60m).

If Cristiano Ronaldo leaves Al-Nassr, his most likely move would be a return to his first club Sporting Lisbon.

Arsenal are eyeing moves for 22-year-old Germany and Eintracht Frankfurt left-back Nathaniel Brown and Sporting's Ivory Coast centre-half Ousmane Diomande, 22.

Liverpool are said to be keen on Ousmane Diomande as a backup option to Marc Guehi following their unsuccessful pursuit of the Crystal Palace skipper

Manchester United are facing a battle with Tottenham Hotspur for 26-year-old Sporting midfielder Morten Hjulmand.