
Most Improved: Simona Halep and Stanislas Wawrinka
With the 2013 tennis season in the past, it's time to dole out our annual awards. Look for the winners—for better or worse—throughout this week on TENNIS.com. (To see what's been unveiled thus far, click here.) Simona Halep: The 22-year-old Romanian could also be called the Surprise of the Year.