Fernandez & Zvereva were inducted together as a doubles team, without their singles career being a factor at all. And they were the 2nd most successful team after Navratilova/Shriver.
Sukova is being inducted alone, and is her doubles alone extraordinary? I think they are inducting her for her doubles alone, not her singles(which is in no way HOF worthy) Again this seems very weird. Unless she has contributed to the game in other ways I'm not aware of.