Marco Asensio's wonder goal in the fourth minute is from 33 yards away, the longest goal n his young professional career.
Celtic outgunned Astana on every level, as Scott Sinclair's brace led them to victory and guarantees UCL group stage football.
Sergio Escudero opened the scoring and a cheeky finish late on from Wissam Ben Yedder put Sevilla in perfect position heading into leg two.
Olympiakos spared themselves a surprising loss, scoring two unanswered goals, with Alaixys Romao's scoring the late winner.
Goals from Dries Mertens and Jorginho helped hosts Napoli take a 2-0 first-leg lead over Nice.
Jason Dasey and John Wilkinson preview the S. League match between the top two teams, and make predictions on the title.