But in the NBA, over-exertion of stars has become a significant concern. 33?BSTEx-NFL star Aaron Hernandez, who is already serving a life sentence for a 2013 murder, was acq. In the 2010 email, Manning asks Giants head equipment manager Joe Skiba asking for “two helmets that can pass as game used”. number of back-to-back games and the number of games played during the two weeks used in the paper’s model.