Originally Posted by TMF
I don’t know if Karlovic should be ranked #16. He did set a record for averaging most aces per match in 2007. He hold serve at a very high percentage despite having a subpar ground game. The guy smashed a record 55 aces at RG, and then 78 at Davis Cup.
I rearranged the list right after watching Karlovic have a pretty mediocre match against a sub-par Nadal at the 2010 AO. His "huge serve" didn't seem that much of a positive. Perhaps that one poor showing colored his demotion too much.