By: Alex Tejada, EBC Sports International, Las Vegas Bureau Crossover athletes have not done especially well at the professional level. One of the two most famous athletes who have excelled in two different professional sports, were Bo Jackson and Deion Sanders. Coincidentally, the two played both football and baseball. In the world of MIx Martial Arts (MMA), athletes learn to become better boxers in order to enhance their stand up game; meanwhile increase their fighting […]