Arena Pro Swim Series at Mesa - Day 2

In This Photo: Michael Phelps, Ryan Lochte
Ryan Lochte (L) jokes with Michael Phelps after the 100m Butterfly Finals during day two of the Arena Pro Swim Series at the Skyline Acquatic Center on April 16, 2015 in Mesa, Arizona.
(April 15, 2015 - Source: Chris Coduto/Getty Images North America)