The former Arsenal player has had his say on the recently appointed Sunderland manager.
The Black Cats are currently 19th in the Premier League with just three points from a possible 24, and it was no surprise when Dick Adovaat left the Stadium of Light with Allardyce now taking the helm.
But can Sunderland really pull clear of the bottom three considering their terrible start to the campaign and with the players currently at their disposal?
Keown believes that if Allardyce pulls this one off it will beat everything the former West Ham United and Bolton Wanderers boss has done so far.
“I think it will be his best ever achievement if he does (keep them up),” Keown wrote.
“Right now, I think keeping them up might be beyond even him. You can be sure that every ounce of his knowledge and wisdom will be put to the test this season.”
It was certainly time for a change at Sunderland but whether or not it was the right one only time will tell.
Sunderland’s next match is against West Bromwich Albion on Saturday and if the Black Cats win that they will be just two points behind Tony Pulis’s 17th-placed side.