Baltimore Ravens coach John Harbaugh had some fun with rival coach Mike Tomlin at a charity event.
Arizona Cardinals defensive back Tyrann Mathieu is four months removed from surgery to repair his right ACL and will only watch during OTAs.
Cam Newton and the Carolina Panthers enter Phase 3 of their offseason training regimen on Tuesday.
Despite losing Malik Jackson and Danny Trevathan, Denver's defense remains confident because of its cornerback depth, which includes Bradley Roby.
Reporters will have a chance to check in with new Lions defensive coordinator Jim Schwartz, who should have plenty to talk about.
The Bears will have a new lead running back, but fans should temper expectations for Jeremy Langford, who started just two games last season.