Mylan World TeamTennis celebrates its 40th birthday this year. For more on WTT, including this season's schedule, click here.
2014 Record: 10-4 (1st in the East)
Owner: Mark Ein
Key Additions: Serena Williams
Key Losses: Bobby Reynolds
Returners: Martina Hingis, Venus Williams, Leander Paes, Anastasia Rodionova
Coach: Murphy Jensen
It is a team that needs no introduction: the Washington Kastles have been the team to beat during the 2010s, winning five of the last six Mylan World TeamTennis championships and are looking for five consecutive King Trophies by the end of the 2015 season.
The Kastles showed some cracks in their typically unbeatable aura. Having previously claimed back-to-back perfect seasons (2011-2012), the defending champions lost a stretch of three of four matches in the middle of last season, along with their final regular season match to the Philadelphia Freedoms. But the team with the #RefuseToLose mantra rebounded well in the play-offs, avenging the loss to the Freedoms and taking out the Springfield Lasers for the second straight year.
Glaringly absent from the roster this season is Bobby Reynolds, who retired after winning the Mylan WTT Championships last summer. The 2010 Mylan WTT Rookie of the Year, 2012 Male MVP and 2013 Finals MVP is already sorely missed by his teammates.