The second round of play at Wimbledon started on Wednesday. The day also includes a handful of holdover matches pushed back by Tuesday's rain. There were a pair of upsets in the early going, a major one and another involving Florida's Sloane Stephens.

Stephens upended No. 23 Petra Cetkovska using a tiebreaker on the first set for a final score of 7-6, 4-6, 6-3. The win advances Stephens to the third round.

The day's biggest upset, so far, came when unseeded Arantxa Rus of the Netherlands beat Australia's Samantha Stosur, the fifth seed. Rus won the first and third sets to take the match and a ticket to the third round.

On the men's side, No. 3 Roger Federer walked past Fabio Fognini in three sets. His path the third round has been a relative easy one, but things should start getting more difficult as the tournament field gets smaller.

Both top seeds, Novak Djokovic and Maria Sharapova play later on Wednesday, weather permitting.

A full Wimbledon 2012 scoreboard can be found at SI.com.

For more throughout Wimbledon, visit SB Nation's Tennis hub.