While we've seen an upset occur on the men's side, hello Andy Roddick, the women's side has been much more stable.
Most notable among the day one participants on the women's side is Venus Williams. This is Williams first appearance in a major since being diagnosed with Sjogren's Syndrome, and early on things weren't looking too hot. After losing the first set to Paula Ormaechea, Williams rebounded to advance with a 4-6, 6-1, 6-3 defeat over Ormaechea.
Sjorgen's Syndrome is a rare autoimmune disorder that causes fatigue. Ormaechea, from Argentina, was strong throughout the contest. Williams withstood the charge from the Argentine and hung on for the day one victory. If ranking holds serve, then Williams will likely face-off against the 2012 Sony Ericsson Open champion Aga Radwanska.