Arizona Cardinals QB Kyler Murray already has a full understanding of the offense he’s expected to lead from Week 1 of the 2019 NFL season, according to teammate WR Larry Fitzgerald. ‘I’ve never seen a quarterback come in so quickly and be able to command an offense,’ Fitzgerald said. ‘I mean, from Day 1, he’s out there checking the different plays, sliding the line, different protections, getting us in screens when blitzes are coming. His understanding of the offense is crazy. ‘I think that’s going to give us a great advantage, to play fast from the first preseason game all the way to the start of the regular season and giving him the keys to the car and letting him is going to be great for us.’