Maria Sharapova has made her Twitter debut at the Australian Open, and she's tweeting on THE trend of this year's tournament.

Mardy Fish and Sam Querrey entered Saturday's semifinals with the opportunity to give the Citi Open its first All-American final since 2007, when Andy Roddick beat fellow Olympian John Isner in straight sets.
Mardy Fish passed on the London Olympics. Tommy Haas wanted in.
Tommy Haas and Alexandr Dolgopolov earned straight-set victories to advance to the second round of the Citi Open on Tuesday.
Top-seeded Mardy Fish rallied from an opening-set loss and beat Bjorn Phau 4-6, 6-1, 6-2 on Tuesday night in a first-round match in the Citi Open.
Even if you strapped Andy Murray to a table and forced him to listen for 48 hours straight to Peter, Paul and Mary, it's a safe bet that he still wouldn't grimace and wince quite so agonizingly as he did in losing the Australian Open final to Novak Djokovic.