The striker could lose his place at Liverpool to Divock Origi, warns Cascarino.
Origi has found himself out of the first-team picture this season as Roberto Firmino, Philippe Coutinho and Sadio Mane have impressed up front.
It has been a similar story for Sturridge, who has been linked with a move away in January as a result of his current standing at the club.
Liverpool's Daniel Sturridge arrives before the match
Origi proved to be the hero on Saturday afternoon, though, as he bagged his side’s opener in the eventual 2-0 win over Sunderland.
It was a moment of excellence in a frustrating game for the Reds and a clear demonstration of the quality he can offer.
And now Cascarino has warned Sturridge that Origi is a problem for the England forward.
“I really like the way Divock Origi is progressing at Liverpool,” he told the Times.
“People keep talking about Daniel Sturridge and how he fits into the Liverpool team but Origi has been progressing enormously in the past year and I think he has got a long-term future with the club.”
“Sturridge has got a battle on his hands. Origi is a problem for him.”
Liverpool's Divock Origi celebrates scoring their third goal
It will certainly be interesting to discover what the future holds for Sturridge in the coming months.
He is unlikely to be happy with his present situation for too long and his mood is only likely to worsen should Origi push ahead of him in the pecking order.
Indeed, it would not be surprising to see him make a move in the January transfer window, with a number of teams likely to be keen on his signature should there be any hint he is available.
Liverpool's Daniel Sturridge