Question: Both Zina Garrison and Nenad Zimonjić are former or current professional athletes of what sport?
Sentence (from "Zina Garrison"): During her career, she was a women's singles runner-up at Wimbledon in 1990, a three-time Grand Slam mixed doubles champion, and a women's doubles gold medalist and singles bronze medalist at the 1988 Olympic Games.
Relevant evidence: No