How on earth does Serena keep losing the first set, fight hard to win the second, only to mastermind a 6-0 destruction in the third? It's been going on for yonks. What on earth is that about? It's an embarrassment all round. Talk about Djoker playing with his prey!
Interesting that you seem to be somehow indicating its Serena's fault. It's just as much about the opponent, who probably put all their mental capacity into winning the first set when Serena was constantly threatening.