Arsenal's latest quest for Champions League supremacy commences on Thursday evening, when the Gunners make the trek to Italy to pit their wits against Atalanta BC.
That fixture is one of six taking place in Europe's elite competition on September 19 - Barcelona, Bayer Leverkusen and Atletico Madrid are seeking winning starts too - while there are also games in Spain, Turkey and South America.
Below is Sports Mole's selection of predictions and previews for today's and tomorrow's fixtures.