By: Hans Themistode
It didn't take long for UFC star Conor McGregor to get rid of Donald Cerone at UFC 246.
40 seconds to be exact. It took Floyd Mayweather an even shorter amount of time to call out McGregor on his Instagram account for a rematch.
Seemingly watching the McGregor contest with his finger on the send button, Mayweather watched as McGregor landed a head kick and followed it up with several strikes on the ground that ended the contest. Once Mayweather pushed the send button...