Atletico Madrid chief executive Miguel Angel Gil Marin has admitted that Joao Felix could leave the club, naming the player's relationship with coach Diego Simeone among the factors that could lead to a departure.

Joao Felix, now 23, joined Atletico from Benfica in a club record €126 million deal in July 2019 but the Portugal forward -- currently in Qatar for the World Cup -- has struggled to consistently justify that outlay.

He has scored three goals in 12 LaLiga appearances -- seven of which have come as a substitute -- so far this season, and failed to score in the Champions League group stage as Atletico crashed out, finishing bottom.

"[Joao Felix] is the biggest bet this club has taken in its history," Atletico CEO Gil Marin told TVE on Tuesday. "I personally think he's a top talent, a world class player.