Question: Who has achieved a higher World Ranking (in either singles or doubles), Goran Ivanišević or Nenad Zimonjić?
Sentence (from "Nenad Zimonjić"): While Zimonjić is known as a doubles specialist (winning 3 Grand Slams in men's doubles and 5 in mixed doubles), he has recorded two big wins in his singles career.
Relevant evidence: No