Their hyphenated monikers notwithstanding, Kimiko Date-Krumm and Bethanie Mattek-Sands have taken different paths in their careers and lives. Back in 1996, KDK had one Steffi Graf on the ropes in a Wimbledon semifinal encounter. At 43, she's still going strong, with her flat, no-nonsense strokes slowly but surely taking down foes.
Meanwhile, BMS has been a stylish, flashy player, with a game predicated on power from day one. (And that started in this cool young century.) She's not so much a trendsetter exactly as a trend-starter, and also a trend finisher. Witness last year's Google Glass experiment, and yesteryear's tennis-ball gown from the Wimbledon players' pre-party: