It has been reported that Inter value the 26-year-old midfielder at €16 million (£13.81m), and that Everton and Monaco have carried out a survey.
West Ham United spell
Mario knows the Premier League well, having had a spell at West Ham United on loan from Italian club Inter during the second half of last season.
According to WhoScored, the Portugal international made 12 starts and one substitute appearances in the Premier League for the Hammers, scoring two goals in the process.
The combative and talented midfielder played well during his time at the Hammers, but he was not too impressed with the fans in the Premier League in general and those at the London Stadium in particular.
According to WhoScored, the Portugal international midfielder has made 12 starts and eight substitute appearances in Serie A for Inter this season, scoring one goal and providing two assists in the process.
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