Arsenal are among four Premier League clubs who are considering a summer swoop for former Chelsea captain Gary Cahill.
The 33-year-old defender is due to be a free agent when his Blues contract expires at the end of this month, and he is keen to remain in the English top-flight.
Gunners manager Unai Emery is keen to bolster his defence this summer and there are reports that the former England centre back is among his targets.
But 90min has claimed that London rivals West Ham and Crystal Palace are also keeping tabs on his situation and could make a move soon.
Cahill's former side Aston Villa have also been linked with a move, though the centre back would rather stay in London, where he has been since 2012 when he joined Chelsea.
However his former team-mate John Terry is now assistant manager at Villa Park and could potentially persuade his pal to make the switch.
During his time at Chelsea, Cahill won the Champions League, Premier League, Europa League, FA Cup and League Cup.