 On 16 September 2010, Lucas scored his sixth goal for Liverpool shortly after replacing Ryan Babel in the club's first Europa League group stage match against Steaua București.The goal was Liverpool's third in a 4–1 victory and was scored from 22 yards.On 13 November, Lucas was sent off for the second time in his Liverpool career after being shown a second yellow card in injury time in Liverpool's 2–0 defeat to Stoke City.