Stan Wawrinka moves up a spot ahead of Roger Federer.
Several U.S. players, including Jamie Hampton and Sam Querrey, helped out at this year's White House Easter Egg Roll while promoting youth fitness.
Mike and Bob Bryan earned their 98th career doubles title on Sunday in Monte-Carlo, but one twin holds the bragging rights on the individual level.
Stan Wawrinka took out the carving knife to make this impossibly angled backhand volley against Roger Federer in the Monte-Carlo final.
The 17-time Grand Slam is happy that Wawrinka is having his days in the sun.
America's tall drink of water hits 29
The Serb says he'll need to rest for a while; Roger Federer says he could tell Djokovic was hurt during their semifinal.
