Originally Posted by Achernar
What's the context? They seem to have a lot of fun
It was an exhibition doubles match in Milan (Maria/Ana vs Sara/Roberta). Sara/Roberta had BPs at 4-4 and Sara hit a BH to the baseline which was called good but Maria and Ana very sure it was out. Especially Maria was quite upset by this call but of course only in a humorous way and hence that reaction towards the line judge (I guess) when they sat down.
PS: It starts here at 4:40 and the part of the GIF is at 5:31