I don't thinks it's Conor bringing in the millions and mass buzz, he's calling him out and going to him. Crawford while peaking and the one with the future hasn't the media draw of Mayweather. Don't get me wrong wouldn't mind Mayweather getting serious about the sport again and Crawford definitely would step up but lot's of ifs. Two main things pull Mayweathers strings and that's money and the label of p4p status. I think last is the only reason he targeted Marquez in 'comeback'. Should Crawford take top scalps at 147 which I think he does save for maybe Spence in a great 'what if' and ride #1 p4p, who knows with Floyd. Just don't see him being serious again.