The 22-year-old player is a member of Championship side Reading on a season-long loan deal from Rostov.
According to 'Todomercadoweb', Portugal's Sporting has set its sight on Ezatolahi.
Ezatolahi represented Iran national football team in the 2018 FIFA World Cup in two matches against Spain and Portugal.
He scored a goal against Spain but it was ruled out after a Video Assistant Referee (VAR) review for offside.