David Irving quits football on Instagram: 'I'm not doing this s— no more' Unknown 00:09 David Irving has been suspended indefinitely by the NFL for violating the NFL's substance abuse policy. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsTexas Tech WR Seth Collins granted 6th year of eligibilitySS Trea Turner, Nationals agree to $7.45 million for 2020More quarterbacks are using their hands to catches passesCardinals, Gant avoid arbitration by signing one-year, $1.3 million contractHow long is Zion Williamson out? Injury timeline, return date, latest updates on Pelicans rookieProtecting Wilson? Seahawks won't know who until Sunday