Its an exhibition she is only entertaining the crowd, threatening umpires is Serenas thing. The best mens tennis player right now does this kind of thing a lot you dont have to be a bell end to be competitive. Womens tennis is sh*t so maybe it needs things like this at grandslams to gain any interest
What professional athlete doesnt get mad at the referees, Managers, Head Coaches, Playeers all of them have a right to get mad at officials doesnt serena?
Also why does it matter it was an exibition? Like i said originally it is low class by the polish chick (The Polack if is was Archie), it is unnecessary and what purpose does it serve other than to put down serena