PITTSBURGH (AP) — Steelers wide receiver Diontae Johnson says he needs to do a better job of getting control of his emotions going forward. Cameras caught Johnson standing idly by during a teammate’s fumble early in a victory over Cincinnati. Johnson had let a potential touchdown pass slip through his hands on the previous play, and his frustration bled over to a lack of effort that caught the attention of Steelers coach Mike Tomlin. Johnson says he’s not perfect and the one mistake does not define him as a player.