salam brother: it is a complete waste of time. i have even seen fatwa that playing chess is haram because it is a waste of time. Can you imagine on qiyama, when our whole life will seem like a second gone by, we will be wishing that instead of watching nfl/nhl for hours and hours we made one more subhanallah or astaghfirullah...our own mothers/brothers.sisters will be coming to us asking for one more good deed and we will be running away from them saying that we need all our good deeds for ouseleves...now what do you think about nfl?