Something rather unusual occurred after 68 minutes of Arsenal’s heavyweight clash with Bayern Munich: with the score at 1-1, Bukayo Saka was substituted. In any previous season under Mikel Arteta, such a decision would never have been made.

Emiliano Buendia struck deep into injury-time to hand Unai Emery’s side victory over the leaders at Villa Park.

Arsenal's players showed a huge range of emotions after conceding late against Aston Villa. What can we learn from them?

The Villans, now second in the Premier League, secured a 2-1 victory against Arsenal thanks to a last-second goal by Emiliano Buendia. The opening goal came from Matty Cash in the 36th minute. Taking advantage of a perfect cross into the box, the full-back blasted past Raya to give the Villans the lead.

Arsenal eased past Brentford to restore their five-point advantage at the Premier League summit while Villa were made to work harder by Brighton, going 2-0 down before hitting back to win 4-3. Unai Emery’s side have won their last six in all competitions and should provide a stern test of Arsenal’s title credentials.

An early header from Mikel Merino and second-half stoppage-time strike from Bukayo Saka condemned Brentford to a 2-0 defeat against Premier League leaders Arsenal at Emirates Stadium.Kevin Schade

Belgian Pro League side Club Brugge host table-topping Arsenal on Wednesday from 20:00 GMT. Can the locals cause a major upset, or will the Gunners shoot down another opponent? Flashscore’s Frank Monkhouse offers his big-match preview and predictions.