 On 30 March, Lucas signed a new long term contract at Liverpool.After an excellent run of form for Liverpool, his season was unfortunately cut short on 1 December 2011, when it was confirmed he was out for the remainder of the season after he suffered an anterior cruciate ligament injury after he collided with Juan Mata in the 2–0 win over Chelsea in the quarter-final of the League Cup.On 10 April 2013, Lucas signed a new long term deal with the club.