The wide receiver was recently traded from the Miami Dolphins, where he notably protested social injustice issues by kneeling at games.
Brian Flores said he played the hip-hop star's songs at practice to "challenge" Kenny Stills after the receiver questioned Jay's NFL partnership.
The NFL player told ESPN he had received death threats after criticizing the real estate developer for hosting a fundraiser for President Donald Trump.
The NFL star suggested that hosting the event is contradictory to the mission of Stephen Ross's nonprofit, which is aimed at tackling racial discrimination.
In the league's opening week, one player sat during the national anthem and two others have kneeled.
The organization said it would continue to protest the Dolphins and the NFL while players kneel.
Let's take a look at some of the key bullet points for Saturday's showdown, which will kick off at 3:30 p.m. ET on ESPN. 1