Liverpool will be without midfielder Luis Garcia for the remainder of the season after he picked up a serious knee injury on Tuesday.
The Spaniard was stretchered off with 15 minutes remaining of Liverpool's Carling Cup quarter-final tie against Arsenal.
Garcia was in obvious pain as he was carried from the Anfield pitch and scans have now revealed the severity of the injury.
The 28-year-old ruptured the anterior cruciate ligament in his right knee and will be out for a considerable amount of time.
"Unfortunately we expect to be without Luis for six months," a club spokesman told Liverpool's official website.
Meanwhile, Mark Gonzalez, who Garcia replaced, will be sidelined for three weeks after injuring his shin in the same game.
An X-ray on Tuesday evening allayed fears that the Chilean had broken his leg, but a scan has revealed severe bruising to the bone and soft tissue.