Djokovic in tears during US Open first-round exit

Djokovic is only the fourth man in history to have played 20 times at the US Open How dramatic night in New York unfolded Djokovic made a promising start as he broke Navone's serve at the first attempt, only to see a 4-1 advantage wiped out as he began to struggle in the humid conditions.

Novak Djokovic broke down in tears during a US Open first-round defeat by Argentina's Mariano Navone which provided further evidence age is fast catching up with the 39-year-old great.

The 24-time Grand Slam champion was overcome by emotion in the deciding set of a dramatic match where he struggled physically throughout and had to vomit into a towel bin.