Saiss has been in and out of the Wolves side this season.
The 28-year-old has been in and out of the Wolves side this season but has impressed when given the chance. In fairness to the Morocco international, he does have some hefty competition ahead of him.
Indeed, summer signings Joao Moutinho and Leander Dendoncker are both considered Champions League quality, while Ruben Neves has been linked with almost all of Europe's biggest clubs.
Despite that, Nuno Espirito Santo has trusted the African star plenty of times, using him 17 times in all competitions - 13 of which have come in the Premier League. He has scored goals against Fulham and West Ham United.
Now, La Liga heavyweights Atletico are said to be watching the midfielder - with the two sides having already done business this season after left-back Jonny completed a permanent move to Molineux in January.
Saiss has a contract at Wolves until the summer of 2020, and that may force Santo's side into selling the player come the summer where he will only have 12 months remaining on his current deal.
Spotrac claim Saiss is earning just £22,000 a week, but Atletico are likely to improve such a pay cheque if they make a move. The report also claims that a Saudi Arabian club were willing to quadruple his wages in January, but he said no.
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