Michael Phelps
Courtesy of: Peter H. Bick
PHOENIX, Arizona, April 14. AS expected, social media went ballistic with the news earlier today that Michael Phelps' comeback would officially begin next week at the Arena Grand Prix in Mesa, Ariz., after months of speculation.

Fans, journalists, fellow swimmers and even a "Saturday Night Live" cast member made their opinions known throughout the day today on Twitter, and the reception -- as far as we could tell -- was positive. Phelps was trending very high on Twitter, as expected, ranking sixth as of 10:30 a.m. Pacific time.