Social scene: Mixed emotions over Serena's loss

— -- It is arguably the biggest upset in tennis history: Serena Williams, going for the calendar Grand Slam, was ousted in the US Open semifinals on Friday by Italy's Roberta Vinci 2-6, 6-4, 6-4. The social sphere was filled with mixed emotions, both shocked by Williams' loss and impressed with Vinci's determination. Here is some of the reaction from the Twitterverse:

The initial reaction

#BlameDrake?

The blame game for Williams' loss? The social sphere turned to rapper, songwriter and actor Drake, who was in attendance at Arthur Ashe Stadium:

Respect, too, for Vinci

From overcoming 300-1 odds to beat Williams, to her postmatch interview with ESPN's Tom Rinaldi, fans, athletes and experts fell in love with Vinci: