Hundreds of Olympiacos fans defied the coronavirus restrictions, gathering outside the Georgios Karaiskakis Stadium on Sunday.
They watched the (closed) game between AEK on the giant screen, the last of the playoffs, before celebrating their teams 45th league title.
The red and whites prevailed over AEK 3-0.
Celebrating also got a bit out of hand with some fans hurling flares into the stadium. As a result, one fan was injured and was taken to hospital where he remains in a stable condition.