Eden Hazard and Jan Vertonghen in Belgium injury scare

Chelsea and Tottenham rivals in collision during a training session for their country.

Belgium manager Marc Wilmots may have had his heart in his mouth briefly earlier today as two of his top players went down injured.

Chelsea attacker Eden Hazard and Tottenham defender Jan Vertonghen were both left grounded after colliding with each other during their pre-World Cup training camp.

Belgian newspaper Nieuwsblade report: "There was panic in the camp of the Devils. Jan Vertonghen and Eden Hazard collided firmly against each other. Vertonghen was a solid ice pack against the right knee and Hazard paused along the side."

The caution was however temporary: "Moments later, they just trained again with the rest."

Vincent Kompany also sat out the session entirely as a precaution with an existing strain.

Pre-tournament injuries are the last thing any player wants, with Rafael van der Vaart of Holland and Lars Bender of Germany seeing their dreams collapse over the past week.

Brazilian midfield captain Emerson famously ruled himself out of the 2002 tournament by injuring himself in training while japing around in goal.

Fortunately this time, Belgium have no such serious problems to worry about.

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