By Ryan Burton

The social media networks have been buzzing ever since pound for pound king Floyd Mayweather Jr. (43-0, 26KOs) dropped his bombshell tweet stating that IBF welterweight champion Devon Alexander (24-1, 13KOs) was the frontrunner to be his opponent on May 4th at the MGM Grand Garden Arena in Las Vegas.

Prior to the Tuesday tweet, it was widely thought throughout the industry that it was a mere formality that Robert Guerrero would be the one facing Mayweather on Cinco De Mayo weekend.  

Alexander's manager and trainer Kevin Cunningham threw more gasoline on the fire when he exclusively told BoxingScene that Mayweather's only option is facing Guerrero if he wants to keep his perfect record intact.

Earlier today, Cunningham said Alexander is going to receive weeks of therapy to heal his right bicep injury, but he would be ready to fight by April.

"Floyd says Devon is the frontrunner to get the fight but I don't blame him for taking his time with making a decision. Because if I know Floyd he wants to keep his '0', so he better choose Robert Guerrero," Cunningham said.

Send questions or comments to ringsidewriter@gmail.com Follow Ryan on Twitter @ringsidewriter and tune in to The Boxing Lab, BoxingScene's official audio on Tuesdays. The show is hosted by Ernie Gabion, Luis Sandoval and Ryan Burton