Alexis Sanchez was omitted from Arsenal's squad to face Bournemouth.
Sanchez did not even travel to the Vitality Stadium, with Gunners boss Arsene Wenger admitting he was left at home over his unresolved future.
The forward has refused to sign a new Arsenal contract with his current deal expiring in the summer, and Manchester United and Manchester City are reportedly both keen on recruiting the Chile striker this month.
United are odds-on favourites at 1/2 with Sky Bet to sign Sanchez during the current transfer window and he's on offer at 15/8 to join City.
Sanchez is now out at 9/1 to remain with Arsenal until at least the end of the season.
Wenger confirmed before kick-off in Arsenal's 2-1 defeat that he remained unsure on Sanchez's future.
"He's being vague, we have left him at home because of the situation," Wenger told Sky Sports.
"I still don't know what is going to happen."
Wenger admitted on Friday that Sanchez would not be signing a new Arsenal deal, ultimately paving the way for the 29-year-old to leave the north London club in the current transfer window.