Some people (xtains) have their reservation for sporting activites especially considering the obsession it creates at the expense of some other important activites. But as for boxing, everyone understands the nature of it. Boxing have left many in perpetual excruciating state of health. Despite this, so many still earn their living with it. A boxing match will either end in a victory for one of the contestants or a draw which might elicit a re-match. But regardless of how it ends, injuries, pains are always being inevitably inflicted -internally or externally.
You think a christian should consider boxing as a profession?
Note: you can react with respect to other sporting activities