<text>  England fullback Sam Tomkins has been ruled out for up to six weeks with a knee injury. The former Wigan favourite, who celebrated his 26th birthday on Monday, suffered a partial tear of the posterior cruciate ligament in his left knee during the New Zealand Warriors round-three win over Parramatta at Mount Smart Stadium at the weekend. England fullback Sam Tomkins has been ruled out for up to six weeks with a knee injury . Former Wigan favourite suffered partial tear of the posterior cruciate ligament in his left knee . Tomkins, who was an ever-present for the Warriors in his first season in the National Rugby League in 2104, is expected back in either late April or early May. The outcome is a lot better than it could have been, coach Andrew McFadden told the clubs official website Sam will rehab the injury and should be available again in a few weeks. Obviously its a setback being without a player of his quality but its also a big opportunity for Tui Lolohea Warriors ever present Tomkins is expected to return to action in either late April or early May . 