Former European champion Red Star Belgrade lost at Estonian champion Levadia Tallin, 2-1, on Wednesday but advanced to the third round of UEFA Champions League against Scottish club Rangers thanks to its away goal by playmaker Igor Burzanovic.
Red Star, which won the European Cup in 1991, advanced on the away goals rule after winning the first leg 1-0 at home.
Steaua Bucharest, another former European Cup champion, also advanced thanks to a 2-1 victory over Poland's Zaglebie Lubin and 3-1 aggregate win.
The biggest upset was the elimination of Belgium's Racing Genk, which won, 1-0, at Bosnia's Sarajevo but couldn't make up its 2-1 loss at home.
The biggest margin of victory was Rosenborg's 7-1 win over Kazakhstan champion Astana -- Ivory Coast's Abdoulrazak Traore scored a hat trick -- to send the Norwegian team through with a 10-2 aggregate victory.
Rich Ukrainian club Shakhtar Donetsk, which recently bought Mexican star Nery Castillo, got a scare from Pyunik of Armenia before winning, 2-1, and advancing to the third round, 4-1, on aggregate.
Oleksandr Gladkiy, another recent signing, and Brandao scored in both legs for Donetsk.