Arsenal midfielder Mikel Arteta has never made an international appearance for Spain's seniors, and through residency regulations, would now be eligible to play for England were the FA to decide to call upon him.
The issue of naturalising players has come to the fore of late following the emergence of Manchester United teenager Adnan Januzaj, and those opposed to the idea may be concerned by the news that Arteta has been spotted on the training ground with England players.
Jack Wilshere, an Arsenal teammate of Arteta, has been one to publicly outline his aversion to naturalisation, but he need not worry just yet, as the Spaniard only stumbled upon England training by chance.
England are preparing for Tuesday's vital World Cup qualifier against Poland at Wembley by undergoing practice sessions at London Colney, the training ground of the Gunners.
Given that he is not on international duty, Arteta has been maintaining his fitness by working alongside Arsenal staff, and was pictured on Monday having a chat with former teammates Phil Jagielka and Leighton Baines on the way to their respective sessions.
Arteta previously played with the England duo, who are both set to start against Poland, during their time together at Everton, before the 31-year-old secured a transfer to Arsenal in the summer of 2011.