The former Sky Sports presenter believes that if the Black Cats lose badly to Swansea City at home in the Premier League this afternoon, then the Dutchman could decide to step down.
“And how long has Advocaat got at Sunderland?” Keys wrote on his website. “I believe if they lose badly this weekend at home v Swansea he'll walk - unless Ellis Short (who's suitably named because he's come up short again on his promises) starts delivering.”
Sunderland will head into this afternoon’s Premier League game against Swansea at the Stadium of Light on the back of two successive league defeats.
Following a 4-2 loss to Leicester City away from home at the King Power Stadium, the Black Cats went down 3-1 to Norwich City at the Stadium of Light.
Last season, Sunderland narrowly avoided relegation from the Premier League, and the 2015-16 campaign looks likely to be similar.
Sunderland are a big club and have a strong following, but over the years they have become also-rans in the Premier League and consistently struggle for survival.
Under manager Advocaat this season was supposed to be different, but some things never change.