Second half goals from Alexis Sanchez and Sergi Roberto gave Barcelona a 2-1 victory over Osasuna on Thursday and a quarter-final clash with arch-rivals and titleholders Real Madrid in the Spanish Cup.

Dejan Lekic had put hosts Osasuna ahead five minutes before the break in Pamplona before Sanchez headed in a 48th-minute equaliser for the Catalans.


Barcelona's forward Lionel Messi. Pic/AFP

Substitute Lionel Messi set up Roberto to seal victory after 71 minutes for a 6-1 aggregate scoreline and a meeting with Real Madrid next Wednesday.

Real Madrid qualified with a 72nd minute goal from Karim Benzema on Tuesday giving them a 1-0 win over Malaga for a 4-2 aggregate victory.

Real Madrid host Barcelona in the first leg next Wednesday with the return leg on January 25 at the Camp Nou. The two sides meet again just a month after the 'clasico' which Barcelona won 3-1 at the Santiago Bernabeu.