Terrorists are the least of the problem when it comes to Islam. Muslims like this that push their religion into all aspects of America, are even more dangerous to life as we know it. As a Christian why are you supporting a man following a religion that calls for your dominance?
What would you have to say about a Jewish player that refused to practice on the Sabbath? Or what about a Catholic player that insisted on attending Mass on Sundays to receive the Eucharist?
If we are going to demand freedom for a Christian to express his/her religion in workplaces (or on the grid iron), then we need to expect others will want to practice their faiths too.