The Sun says several Bluebirds players believe their 70-year-old manager is set to quit at the end of the season.
It would mean the straight-talking Yorkshireman ending his tenure at the Cardiff City Stadium a year earlier than contracted.
His current deal is due to expire in 2020.
And Warnock has experienced a hugely draining season.
The tragic death of £15million January signing Emiliano Sala in a plane crash and the Bluebirds' Premier League struggles have taken their toll.
The former QPR and Crystal Palace chief revealed he had considered quitting following the striker's passing, claiming it left him “shattered".
It remains to be seen if Warnock, who has bossed 15 CLUBS in a near 40-year managerial career, would retire from football completely if he leaves Cardiff.