Sunderland defender Patrick van Aanholt, who was withdrawn from the Sunderland lineup to face Tottenham on Sunday after the club were informed of the results of tests on his heart, has told Voetbal International he was "surprised."
Van Aanholt, 26, was due to start the game at White Hart Lane, which Sunderland lost 1-0, but was withdrawn from the XI half an hour before kickoff.
He said: "I was surprised, because there is really nothing to worry about."
Television pictures showed the Dutch defender reacting with shock when teammate Jason Denayer told him he would be starting in his place.