Celtic manager Neil Lennon admitted Georgios Samaras could cost him his job despite defending the decision to give the striker a new three-year deal.
Samaras extended his contract in March after scoring just three Clydesdale Bank Premier League goals last season, including two against fierce rivals Rangers at Ibrox.
The Greek is yet to score this campaign having been identified as the weak link in the squad as he continues to receive strong criticism from fans and ex-players alike.
As part of the club's annual general meeting Lennon gave his backing to the 26-year-old, claiming he had no regrets in keeping him.
But the boss warned Samaras could get him sacked unless his performances improve.
"The alternative was to let him leave for nothing.
"There was a lot of interest in him from other clubs. But he wanted to stay here and prove himself. So he is our player.
"I have to encourage him and eke the talent out of him because he has attributes.
"He is a player who could ultimately get me the sack.
"I am as much to blame as him for his performances but I can't give up on him."