Arsenal's last-gasp win ensures every Premier League club have won their European game this week.
English clubs in Europe this week:
Liverpool beat Genk 4-1
Chelsea beat Ajax 1-0
Man City beat Atalanta 5-1
Spurs beat Red Star 5-0
Wolves beat Slovan Bratislava 2-1
Man Utd beat Partizan Belgrade 1-0
Arsenal beat Guimaraes 3-2
Dominant.