On 21 August, Barcelona beat Sevilla 5–3 on aggregate to win the 2010 Supercopa de España, his second in a row. On 29 November 2010, Barcelona beat Real Madrid 5–0, giving Guardiola five straight wins in "El Clásico". On 8 February 2011, Guardiola accepted the club's offer for a one-year deal extension, signing a contract until June 2012. On 16 February, in the first leg Champions League first knockout round, Barcelona were defeated by Arsenal 2–1 at Emirates Stadium. The defeat prolonged Guardiola's record of never having won the away leg of a Champions League knockout tie. On 8 March, in the second leg of the Champions League first knockout round, Barcelona defeated Arsenal 3–1, thus winning 4–3 on aggregate, moving them into the quarter-finals.