BEREA, Ohio (WJW)– Cleveland Browns center JC Tretter tested positive for COVID-19 Thursday morning.

Tretter tweeted he was experiencing mild cold-life symptoms before getting tested at the team’s facility.

“I encourage all NFL players to take every precaution available to them to protect themselves, their families and their teammates from this virus,” he said.

The center, who is also the president of the NFL Players Association, has been pushing for more COVID testing all season.