Overview
- At a Super Bowl week news conference, NFLPA officials said they are monitoring player concerns about electromagnetic fields at Levi’s Stadium and are in contact with the league and players.
- General manager John Lynch said the 49ers would look into everything, while owner Jed York noted the substation’s decades-long presence and said he believes the theory can be debunked.
- NFL chief medical officer Allen Sills and independent sports-medicine experts said there is no evidence linking typical EMF exposure to the injuries in question.
- Christian McCaffrey said EMFs are “not nothing” and that he is researching the topic, reflecting how player perceptions are influencing behavior despite limited data.
- Cardinals tight end Trey McBride warned the perception could deter free agents, even though the 49ers have practiced next to the Silicon Valley Power substation for decades.