Many think parents who pressure their children to marry are to be blamed for a drastic measure like renting a boyfriend, while experts say the problem lies in singles themselves.
Dulko is South America's No.1 in player in both singles and doubles - in fact she is her continent's only Top 150 player in either discipline (No.52 in singles, No.4 in doubles).
Both sides have beaten the opponent several times in singles.
He has won five Grand Slam singles titles and the 2008 Olympic gold medal in singles.
There are two people in singles or four people in doubles or mixed doubles.
Zhang Jike is a Olympic champion in singles and the fourth male player in the history of tabletennis to achieve a career grand slam.
Wheelchair tennis is also available to normal people in singles and mixed doubles (one normal and one physically challenged).