The first week of this Australian Open has been something. Serena and Naomi lost on the same night Caroline Wozniacki retired from the sport, Milos Raonic is blasting his way through the men's draw, Rublev extends his win streak, and Novak Djokovic's dominance here shows no signs of slowing. We also take a few moments to ponder a certain 8th-seeded Italian, who allowed Sandgren to flourish. But mostly, we're looking at the many -- often delightful -- surprises of the first week. It's been a ride.