NFL won’t keep Cameron Heyward from playing with “Ironhead” eye black tribute

Steelers defensive lineman Cameron Heyward has, for the second time, violated the NFL’s rules regarding the use of personal messages by putting “IRON” and “HEAD” on his eye black, as a tribute to his late father, Craig “Ironhead” Heyward. For a second offense under the NFL fine schedule, Heyward will lose $11,576. Per a league…