(UPDATED 5 SEPTEMBER 2019)
- Achieved career-high No. 8 on 2 April2012 after reaching ATP Masters 1000 Miami QF. Earned 50+wins and ended year at No. 9 in both 2011 and 2012.Unranked from 13 October 2014 until 13 April 2015 due to injuries. Broke back into Top 100 on13February 2017. Became World No. 1 junior on 8 January 2001 during 33-match win streak.
- Defeated No. 1 Djokovic at 2011 Nitto ATP Finals after replacing injured Murray as ALT.Qualifiedin 2012 and went0-3.
- Captured ATP Tour titles at 2011 Kuala Lumpur, 2011 Moscow, 2012 Stuttgart and 2013 Chennai. Reached 5 finals in 2011 (2-3). Owns 167-87 ATP Challenger Tour record (15-4 infinals). Went 20-0 at Challengers with 4 titles in 2017. Helped Serbia win 2010 title and reach 2013 final in Davis Cup.
- Advanced to US Open QFs in 2011 and 2012. Reached 4R at all 4 Grand Slams, most recently in 2013 at Australian Openand US Open. Led No. 1 Federer 2 sets to 1 in 2008 Australian Open 3R before falling 10-8 in 5th after 4h27m. Won 2001 Australian Open boys' singles title.
- Reached ATP Masters 1000 SFs at 2011 Montreal, 2012 Madrid and 2012 Toronto. Upset No. 1 Djokovic for 2nd time in 2012 Madrid QF. Advanced to 2012 ATP Masters 1000 Rome doubles final w/Kubot.