Per ESPN's Dan Graziano, Coughlin received a warning letter after the NFL Players Association asked the league to remind him of league rules about putting pressure on players to attend voluntary activities.
Coughlin was critical of two players on the roster who didn't show up, per ESPN.com's Michael DiRocco:
"We're very close to 100 percent attendance, and quite frankly, our players should be here building the concept of team, working hard side by side, constructing our bond of togetherness, formulating our collective priorities and goals. Success in the NFL demands struggle. Those who have everything given to them become lazy, selfish and insensitive to the real values of team. The hard work that many try to avoid is the major building block for the development of an outstanding football team.
"It's not about rights and privileges. It's about obligations and responsibility, and the question is: Can we count on you?"
Even though Couglin didn't specifically mention any players, DiRocco noted Jalen Ramsey and Telvin Smith were the only players who didn't participate. The outspoken cornerback hasn't been shy about expressing his desire for a new long-term contract. He has two years remaining on his rookie deal.
Ramsey told reporters in December the Jaguars "need to make (a deal) happen" if they were serious about not having any interest in trading him.
The Jaguars will start organized team activities on May 21, followed by a three-day mandatory minicamp from June 11-13.