Dorial Green-Beckham promises an offseason of hard work

Titans receiver Dorial Green-Beckham had first-round talent heading into last year’s draft, but Tennessee got him in the second round because of off-field concerns. Green-Beckham says this offseason, all he’ll be doing away from the field is working hard. Listed at 6-foot-5 and 237 pounds, Green-Beckham says he’s actually a little lighter than that and…