Liverpool are starting to get very worried about Daniel Sturridge after the striker suffered an unusual reaction to his knee injury, according to the Sunday Mirror.
Jurgen Klopp has already lost Danny Ings and Joe Gomez for the rest of the campaign, both suffering anterior cruciate ligament damage in his first week as Liverpool manager.
Originally, Sturridge's injury had been labelled a minor one with some of Melwood's medical staff even suggesting he could play in today's game against Southampton.
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However, those same medics are struggling to diagnose the issue and there is, as it stands, no date pencilled in for his return.
The German manager was asked about Sturridge in his pre-match press conference on Friday and had no choice but to answer honestly.
“I don’t know," he told reporters.
Sturridge has yet to play under Klopp having missed games against Tottenham and Rubin Kazan. Again, he will not be involved when the Saints travel to Anfield this afternoon, but there is hope he will be available sooner rather than later.
Medics have been unable to diagnose the problem because swelling around Sturridge's knee has not rescinded in a way they expected. The scan will only reveal the state of his knee if the fluid around it drains away.
The fact that it is still swollen has left officials on Merseyside fearing that his injury is rather more sinister than anyone had originally predicted.
Sturridge has been struggling with injuries for the best part of the last year, spending five months out with a troublesome thigh injury last season. His absence, coupled with the departure of Luis Suarez, seriously dented Liverpool's chances of finishing in the top four.