Question: Both Zina Garrison and Nenad Zimonjić are former or current professional athletes of what sport?
Sentence (from "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.
Relevant evidence: Yes