![Carolina Panthers' Cam Newton wears a shirt with a quote by Martin Luther King as he warms up.](/web/20160930040719im_/http://www.smh.com.au/content/dam/images/g/r/o/b/9/8/image.related.wideLandscape.620x349.grob8q.png/1474847476122.jpg)
Newton warms up in shirt with Martin Luther King quote
Carolina Panthers quarterback Cam Newton has weighed into the Charlotte unrest by wearing a T-shirt emblazoned with a famous quote from civil rights activist Martin Luther King Jr. ahead of his team's home game.