However, union president JC Tretter noted Wednesday that injuries on grass surfaces were lower from 2012-2020, calling 2021 an “outlier.”

Source: https://nesn.com/bets/2023/04/nflpa-injuries-significantly-higher-on-artificial-turf/

It became clear during a 40-minute press conference on Wednesday, as NFLPA president JC Tretter was peppered with questions on the matter, that union leadership associated confidentiality with “good governance.”

Source: https://www.nbcsports.com/nfl/profootballtalk/rumor-mill/news/in-its-search-for-new-executive-director-nflpa-put-excessive-focus-on-confidentiality

Tretter said that when the NFL briefly had an increase in grass injuries in 2021, owners used that increase in injuries on grass to suggest that grass was no safer than artificial turf.

Source: https://profootballtalk.nbcsports.com/2023/04/01/j-c-tretter-injury-data-from-2022-season-makes-clear-that-grass-fields-are-safer/

“You don’t need to be a former player to be able to motivate and galvanize a group of people,” NFLPA President JC Tretter said.

Source: https://www.centralmaine.com/2023/06/29/nfl-notebook-new-englands-veteran-defenders-impressed-with-rookie-class/