Well this doesn't (almost) happen everyday.
Now, multiply that by a factor of 10, and you will know exactly how Chris Weidman was feeling prior to his fight against Vitor Belfort at UFC 187 this past Saturday (May 23, 2015) in Las Vegas, Nevada. According to Weidman, if he looked pale and a little sickly to the viewers as he was heading into the Octagon, your eyes weren't deceiving you.
During his appearance on The MMA Hour, "All American" revealed that he had to go to the bathroom so bad that he nearly became the first fighter ever to stall a bout while he took care of business.