Celtic maintained their perfect start to the competitive season on Sunday, while their upcoming Champions League play-off opponents LASK were given a few warnings of their own despite another victory. Austria Wien, who finished fourth last season, thought they had taken the lead after just 13 minutes. Jungwirth did not mention Celtic, but the warning is obvious enough with the Champions League play-off now looming. There is around £40 million riding on reaching the Champions League proper, and neither club needs reminding of what qualification would mean in every aspect. Celtic Park will provide the next test in the first leg on Wednesday, August 19.