Both Zina Garrison and Nenad Zimonjić are former or current professional athletes of what sport?
Zina Garrison: Zina Lynna Garrison (born November 16, 1963) is a former professional tennis player from the United States. Nenad Zimonjić: Nenad Zimonjić (Serbian Cyrillic: , ] ; born June 4, 1976) is a Serbian professional tennis player who was ranked World No. 1 in 2008 in doubles.
tennis