Pro Football Focus' grading system identifies five players poised for big 2014 seasons based on their preseason performances, including Chiefs tight end Jason Kelce and Jets rookie safety Calvin Pryor.
The average starting NFL defensive tackle played 648 snaps last season. Dontari Poe played 1,004 -- and was able to dominate despite the extra workload. He leads off Pro Football Focus' All-Ironman team.
With a contract that expires at the end of next season, the Minnesota Vikings may pursue trade options for Percy Harvin. Pro Football Focus author Sam Monson explains why the Patriots and others should be very interested.