Arsenal could be about to explore one of the most unexpected transfer moves of the summer.
According to the Sun, Arsenal are considering signing John Stones if the injury to William Saliba proves to be serious.
Saliba battled through intense back pain for France at the FIFA World Cup before eventually being forced off during the semi-final defeat to Spain.
Back injuries are notoriously difficult to manage and often require far longer to heal than initially anticipated.
Should Saliba face an extended spell on the sidelines, Arsenal could suddenly find themselves facing a major defensive headache ahead of their Premier League title defence.
Bringing a new centre-back to the Emirates Stadium would be a wise decision.
The Gunners are already preparing a bid for defender Ezri Konsa but Aston Villa are expected to demand a premium fee for their key player.
Stones became available after leaving Manchester City when his contract expired at the end of June.
During his glittering 10-year spell at the Etihad Stadium, Stones won six Premier League titles, the UEFA Champions League, the FIFA Club World Cup, and numerous other major honours.
He would bring experience and leadership to the Arsenal side that look set to take the next step under manager Mikel Arteta.
However, the reigning league champions must carefully weigh the risk attached to his persistent injury record.
Stones has missed more than 100 days through various fitness problems in each of the last two seasons.
He is also likely to demand substantial wages along with a sizeable signing-on bonus before agreeing to any move.
Stats from Transfermarkt.com & Fotmob.com