close Former NFL star Greg Olsen talks league's streaming deals, grass vs turf debate Three-time Pro Bowl tight end Greg Olsen talks to Fox News about the NFL's streaming rights deals and the ongoing playing surface debate as FIFA grass overtakes NFL stadiums. NEW You can now listen to Fox News articles! Seven NFL stadiums are installing grass fields to comply with FIFA regulations for this summer's  World Cup , and one of the league's biggest stars is calling out the hypocrisy. Half the league’