New Tennis.com site coming soon. Preview Now!

Federico Delbonis, of Argentina, returns to Ryan Harrison at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 20, 2014. (AP Photo/Alan Diaz)

Sony Open Tennis

Federico Delbonis, of Argentina, returns to Ryan Harrison at the Sony Open tennis tournament in Key Biscayne, Fla., Thursday, March 20, 2014. (AP Photo/Alan Diaz)

Top Ranked Players
More Rankings