Following Thursday's first open practice of the 2014 season, the work doesn't end in Green Bay, but it does take place behind closed doors.

Organized Team Activities (OTAs) will continue at 1265 Lombardi Ave. on Friday, they just won't be open to either the public or the media.

As their teammates take part in practice, a pair of players from this year's rookie class—wide receiver Davante Adams and defensive lineman Khyri Thorton—will be out in Los Angeles for the annual NFLPA Rookie Premiere.

While acknowledging that Adams and Thornton were obligated to attend the event due to the NFL's Collective Bargaining Agreement, head coach Mike McCarthy wasn't particularly pleased with the timing of the Rookie Premiere, based upon his comments Wednesday.

"Do I like that they're missing practice?" said McCarthy. "No, I don't like that. I don't understand it either. It's part of the contract."

Adams and Thornton will have their plate full out on the West coast, however, according to the Players Association:

Throughout the event, players will gain information to assist in the development of their professional careers. The union’s annual orientation includes seminars focused on financial planning, brand building, group player rights, and social media best practices. Among the featured guest speakers are former and active NFL players Marshall Faulk, Willie McGinest, Torry Holt, Brandon Williams, Daunte Culpepper, Kevin Bentley, Jamaal Charles, Israel Idonije, and Austin Pettis. Additional speakers include NFLPA Executive Director DeMaurice Smith and NFLPI President Keith Gordon.

Even though no players with Packers ties will take part, MMQB's Peter King will host a Google Hangout with rookies Brandin Cooks and A.J. McCarron on Friday at 3:00 p.m. at the site of the Rookie Premiere.