Trai Turner lost his cool and crossed a line Sunday afternoon at Heinz Field.
Turner was ejected in the fourth quarter of the Week 2 Raiders-Steelers contest for unsportsmanlike conduct. After Ben Roethlisberger connected with rookie running back Najee Harris for a 25-yard touchdown pass, Turner approached Marquel Lee and appeared to spit on the Las Vegas linebacker.
It's unclear what exactly riled up the Pittsburgh guard, but you can watch a video of the sequence here.
Turner, an eighth-year pro, was amid the second game of his Steelers tenure. The 28-year-old signed a one-year, $3 million deal with Pittsburgh back in June.
It would not be surprising if the veteran offensive lineman faces further discipline from the NFL.