There really isn't anything in particular to break down on this.
Rookie tight end David Paulson broke enough to last a while.
Chasing after Brown is Broncos LB Nate Irving (No. 56)
See the GIF after the jump.
Paulson eyes up Irving, and throws a perfectly legal blindside hit on his shoulder knocking him off his feet. Irving probably wouldn't have made a play on Brown, but his elimination opened up a bit more room for Brown, who made a nice return.
Paulson is listed third on the Steelers' tight end depth chart, and with one tight end likely to be released when Weslye Saunders returns from his suspension after Week 5 (Steelers have a bye in Week 4), Paulson could be the odd man out.
With plays like that, however, and an underwhelming game from veteran Leonard Pope, it's possible Paulson stays and Pope sees his days as a Steeler end.