SANTIAGO, Feb. 6 (Xinhua) -- France's Guillaume Rufin stunned Argentina's Juan Monaco 7-6 (3), 6-4 in the second round of the Vina del Mar tennis tournament on Wednesday.
It took the 93rd-ranked Frenchman one hour and 32 minutes to dispose of the defending champion who is ranked 12th.
Rufin will take on either Argentina's Carlos Berloq or Colombia's Santiago Giraldo in the quarter-finals.