The England right-back was assessed by the club's medical team at Melwood earlier on Wednesday and underwent a scan which revealed the extent of the injury which forced him to limp off after 88 minutes of the 1-0 victory at Villa Park. A club spokesman said: "A scan today has revealed a tear in the medial ligament in Glen's right knee. "The player will see a specialist tomorrow, after which we should be able to more accurately determine the length of his rehabilitation period." Johnson now seems certain to miss this weekend's FA Cup trip to Reading and the crucial Anfield visit of Tottenham on 10 January. The 25-year-old has suffered a number of injuries in the first season of his Liverpool career and underwent the controversial horse placenta treatment on a hamstring problem earlier in the campaign.
