The NFL Players Association wants daily COVID-19 testing for fully vaccinated players.

The league and the union agreed last week to update protocols so vaccinated players would be tested weekly instead of every 14 days as they were during training camp.

That’s not enough, according to NFLPA president and Cleveland Browns center JC Tretter.

“Since the beginning of training camp, we have been testing our vaccinated players once every 14 days. It has been ineffective as we’ve had significantly more incidents of transmission inside the building this year than last year,” Tretter wrote in a column on the union’s website. “The NFLPA saw this coming months ago and has been advocating for a return to daily testing because it is more effective way to stop and prevent the spread of the coronavirus in our locker rooms. However, the NFL decided to move to weekly testing; and while that is a step in the right direction, it leaves us open to many of the same problems we’ve been facing.”