The Premier League side need to overturn a deficit against Villarreal.
Phil Thompson believes that if Daniel Sturridge is left out of Liverpool's starting line-up for their Europa League semi-final second leg clash with Villarreal, then it could signal the end of his career on Merseyside, Sky Sports reports.
The 26-year-old was an unused substitute for the first leg that saw the La Liga side take a 1-0 lead into the rematch at Anfield on Thursday.
And having watched the former Chelsea man play the full 90 minutes against Swansea last weekend, Thompson is concerned that something is not quite right regarding the player's relationship with the club, and not featuring in the second leg could be the final straw.
"I'm really worried for Daniel not getting any game time in the first leg and you could see his body language against Swansea was sort of resigned," he told Sky Sports.
"It's a big night for his Liverpool career. I think if he doesn't play then he will have a big question mark over his future and whether he will fit in here.
"You want to have you manager's trust in you playing big games."
While Sturridge's partnership with Luis Suarez was undoubtedly one of the best that the Reds have had in the Premier League era, and thus, he often carried much of the hope on his shoulders once the Uruguayan had left, his inability to shake off his injuries and enjoy a prolonged run in the side appears to have persuaded Jurgen Klopp to put his faith in other forwards for their bigger games.
Nevertheless, the England star has still scored four goals in his last five Premier League games, so certainly has a case to be included for the crucial second leg. And Thompson appears to fear that being left out once again may confirm that Klopp feels that he cannot rely on Sturridge, and may hint that a departure could be on the cards.