Cam Heyward broke his boycott of Steelers OTAs, Tuesday. He showed up for practice, but the long-time defensive lineman still wants a new contract. According to ESPN’s Brooke Pryor, Heyward told reporters: ““I’m looking to be here. … I want to be valued at my position. … I think when I’m at the top of my game, I’m still a top-5 player at my position.” Last month, a week before OTAs started, Heyward explained his plans for OTAs, which are voluntary. “I have always attended these, but at this time, it’s just contract negotiations,” Heyward said on his Not Just Football podcast. “Ya know, I want …