The key talking points from Wednesday's Champions League action, and a reminder on how the new format works - and if losing now

Manchester City manager Pep Guardiola has suggested Kevin De Bruyne is a doubt for Arsenal's visit to the Etihad Stadium on Sunday after the midfielder was forced off with an injury against Inter Milan.

Arsenal midfielder Max Dowman has become the youngest player ever to score in a UEFA Youth League game. Dowman — aged 14 years, eight months, and 19 days — scored Arsenal Under-18s’ only goal in a 4-1 defeat to their Atalanta counterparts to become the competition’s youngest goalscorer since its inception in 2013.

Arsenal academy midfielder Max Dowman has made history by becoming the youngest-ever goalscorer in the UEFA Youth League at just 14 years old. Dowman found the net in Bergamo on Thursday afternoon but Arsenal were on the receiving end of a 4-1 defeat to Atalanta.

Arsenal are set to take on Italian side Atalanta in their Champions League opener and one of their brightest talents has already become a UEFA record holder ahead of the game in Bergamo

Arsenal captain Martin Odegaard has sustained "significant" ankle ligament damage that will keep him out of action for "a while" manager Mikel Arteta said Wednesday.

Arsenal captain Martin Odegaard has sustained “significant” ankle ligament damage that will keep him out of action for “a while” manager Mikel Arteta said Wednesday. The midfielder was injured playing for Norway this month and scans have confirmed the extent of the damage.

Arsenal have been boosted by the fitness of Bukayo Saka ahead of their Champions League opener against Atalanta on Thursday, but Martin Odegaard was absent from training. Saka was forced off late on in Arsenal’s 1-0 win at Tottenham on Sunday but is fit to face Atalanta.