Liverpool are back in action this weekend when they host Cardiff in the fourth round of the FA Cup, with Klopp able to select from a near full-strength squad.
It was expected that Thiago could feature, having returned after a month-and-a-half out with a hip injury, but the midfielder has now picked up a chest infection.
However, speaking ahead of the visit of Cardiff, Klopp did not rule out his No. 6 entirely.
“Unfortunately when Covid is around you always think it’s the only infection or virus you can get, but he had a little chest infection, so he had to step a little bit aside again,” he told reporters.
“It’s not perfect, of course, but I expect him to be in team training today again.
“The rest, the injury is completely fine, looked really good in training, but that’s how things are sometimes.
“We will see how we can use him for Sunday.”
“Naby is completely fine,” Klopp explained.
“Naby came back full of energy, had a few days off as well, came back here after the tournament obviously full of energy and confidence, so that looked good.”
On Origi’s knee injury, Klopp was eager to stress caution, with it likely the forward is slowly reintroduced – particularly as, with the addition of Luis Diaz, Liverpool are no longer short of options in attack.
“Divock [was] yesterday [for the] first time [in] full team training, [and] looked very good,” he said.
“But it was first time full team training after I don’t know exactly how long. It was a while, so from here we go as well.”