Barcelona midfielder Cesc Fabregas was able to train with his Spanish team-mates after recovering from a right thigh injury ahead of their departure to Poland and their base camp for Euro 2012 later on Tuesday.
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The 25-year-old had been sidelined since suffering the injury in the 3-0 Spanish Cup victory over Athletic Bilbao late last month.
However, while Fabregas was able to train fully with the defending champions Real Madrid fullback Alvaro Arbeloa trained apart because of a 'trapped nerve in his back' according to the Spanish federation.
Sevilla striker Jesus Navas had to go to hospital for a precautionary x-ray on his right hand after he bruised it during the training session.
"Jesus Navas went to hospital to undergo x-rays on his right hand after he bruised it during a training session this morning (Tuesday) so as to re-assure himself that it was not serious," read a statement on the federation's website.
The Spanish, who wound up their warm-up matches with a 1-0 win against China last Sunday, are due to arrive later on Tuesday evening at their base of Gniewino.
They begin their defence of the title against Italy in Gdansk on Sunday in a group that also comprises Croatia and the Republic of Ireland.