a) Tennis
b) Badminton
c) Hockey
d) None of these
The Bryan Brothers, 42-year-old identical twins Robert Charles “Bob” Bryan and Michael Carl “Mike” Bryan, the most successful American doubles tennis players announced their retirement from the professional circuit with immediate effect.They won around 119 trophies which includes 16 Grand Slams, 39 ATP Masters 1000s, four Nitto ATP Finals, 438 weeks at No. 1, the 2012 Olympic gold medal and 2007 Davis Cup triumph.