The NFL preseason is in full swing. After months of no games, NFL players returned to the field last week for the opening slate of exhibition games. Not all stars were in action, but there were several memorable moments — including Shedeur Sanders and Jaxson Dart’s debuts for the Cleveland Browns and New York Giants,

R.J. Mickens wasted no time making a statement in his first taste of NFL action. The former Clemson safety had a day for the Los Angeles Chargers in their 27-13 preseason win over the New Orleans Saints, earning one of the top rookie grades from Pro Football Focus in Week 1.

This article was originally published on www.si.com/nfl/cardinals as Arizona Cardinals Rookie One of NFL's Top Preseason Performers. The Arizona Cardinals face a good problem. Their day-three depth players are making waves.