Martina Navratilova hopes to win `` about five '' tournaments in 2014 and play in `` great '' finals . Serena Williams compiled a 78-4 record in 2013 for the best winning percentage on the women 's tour since 1990 and she took home nearly $ 12.4 million in prize money -- the most ever for a female tennis player in a season . The Swiss ends 2013 at No . one , his lowest September ranking since 2002 . Serena Williams is one major short of tying Andy Murray and Chris Evert . Andy Murray returns to the pro circuit in 2014 after undergoing back surgery in year-end .
Martina Navratilova hopes to win `` about five '' tournaments in 2014 and play in `` great '' finals . The Swiss ends 2013 at No . one , his lowest September ranking since 2002 . Serena Williams is one major short of tying Andy Murray and Chris Evert . Andy Murray returns to the pro circuit in 2014 after undergoing back surgery in year-end .