The striker's future at Liverpool has been questioned in recent weeks.
The striker’s future has been brought in to question in recent weeks, after falling out of favour under the German.
First he was dropped in favour of Divock Origi for the clashes against Borussia Dortmund, while the Belgian starring in both.
And he remained on the bench in the huge clash against Villarreal in the Europa League semi final last week, as Klopp opted for Roberto Firmino as his striker instead.
That has led to questions about whether he will remain at the club this summer, and Nicholas says he believes Sturridge will be suspicious of his manager.
“I don’t think Daniel Sturridge has convinced Klopp since the day he walked in,” he told Soccer Saturday.
“The injuries, the debate that goes on about whether he was right in to the head for mental purposes as well as fitness, it’s going to sit there with Daniel Sturridge.”
“He comes across as that type of character. Not playing in the big games is criminal for these players and I think Sturridge will be suspicious of what Klopp believes in him.”
If Liverpool do decide to sell Sturridge this summer, there is likely to be a number of clubs keen on his signature.
There is no denying his quality and now he appears to have put his injury problems behind him, he would be a smart addition for a number of clubs.
Indeed, that could be something that sees the Reds rule out a sale, with them unlikely to be keen to see the move come back to haunt them should he flourish elsewhere.