Ronnie sparks Barca romp
The Slovakian minnows had set up the potential for a mammoth upset after earning a 1-1 draw on home soil but Puchov were unable to tame Barcelona at Camp Nou.
Brazilian ace Ronaldinho proved to be the catalyst for the Liga giants as he scored twice inside 20 minutes and Thiago Motta made it three before the break.
Ronaldinho completed his hat-trick on 57 minutes before Luis Enrique and Javier Saviola stole the show in the closing half hour with a brace apiece.
Villarreal withstood a late fightback to vanquish Trabzonspor in the first round of the Uefa Cup.
After a scoreless first leg in Spain, the Turkish outfit had to be wary of conceding an away goal and managed to hold out for 61 minutes.
Substitute Sonny Anderson broke the Turks' stubborn resistance and Jose Mari quickly doubled the advantage for Villarreal.
Trabzonspor launched a spirited comeback with Gokdeniz Karadeniz and Fatih Tekke hauling the hosts level but Jose Mari netted a winner in the final minute.
Samuel Eto'o inspired Mallorca into the second round as the Cameroon hit-man bagged a hat-trick in a 4-2 romp over Apoel Nicosia.
The visitors took a surprise lead on nine minutes through Stelios Okkarides but Eto'o ensured parity was restored before the interval.
Eto'o netted again on 61 and 71 minutes before Fernando Correa scored on 89 with Giorgos Amanatidis grabbing a late consolation for the Cypriots.
Valencia safely negotiated their passage into the second round with Mista's 70th minute goal enough to beat AIK Solna.
Uefa Cup First Round, Second Leg results:
Barcelona 8-0 Matador Puchov (9-1 on agg)
Mallorca 4-2 Apoel Nicosia (6-3 on agg)
Trabzonspor 2-3 Villarreal (2-3 on agg)
Valencia 1-0 AIK Solna (2-0 on agg)