BRATISLAVA, Aug. 20 (Xinhua) -- Greek champions Olympiacos breezed past Slovan Bratislava 3-0 in their UEFA Europa League play-off first leg at home on Thursday. The winner of the bout will advance to the upcoming group stage of Europe's second-tier football competition, and the loser will be in the group stage of the third-tier Europa Conference League. After a cautious opening phase, Olympiacos produced