Valencia carved out a slim advantage over their La Liga rivals Sevilla when Jonas scored to give the 2008 winners a 1-0 victory in their King\'s Cup last-16 first leg on Thursday. The Brazilian forward\'s first-half strike leaves the tie finely balanced ahead of next week\'s second leg in Seville and the winners will play Levante or second-division Alcorcon in the quarter-finals. Alcorcon, who eliminated Real Zaragoza in the last round, snatched a 2-1 win at home to Valencia-based Levante on Tuesday. Holders Real Madrid and last year\'s runners-up Barcelona are on course to meet in the last eight after the great rivals both won their first legs last week. Real came from two goals down to beat Malaga 3-2 on Tuesday and Barca thrashed Osasuna 4-0 on Wednesday. On the other side of the draw, second-division Cordoba claimed a 2-1 comeback win over top-flight side Espanyol on Thursday.