UEFA have promised to investigate comments from Belgium players threatening to harm Manchester United's Portuguese winger Ronaldo.
Portugal's FA president Gilberto Madail has asked them to look into comments from Belgian keeper Stijn Stijnen, who plays for FC Bruges.
Stijnen said ahead of Saturday's European Championship qualifier in Lisbon: "After two minutes we will have massacred Ronaldo so much that he will have to leave the pitch on a stretcher."
When asked later to explain his comments, the keeper added: "If we try to play like Portugal then we will lose. We are the visiting team and have to be aggressive."
The threats follow a weekend of controversy for Ronaldo, who was subject to 'cheat' jibs from the Middlesbrough bench at Old Trafford after he won and scored a penalty that took United into the FA Cup semi-final.
Meanwhile, UEFA's control and disciplinary body were meeting today to discuss possible violation of safety at Lille's Champions League match against Manchester United.