Watch as Tammy Abraham finishes off a Nicolò Zaniolo assist, while Gianluca Mancini’s header was fingertipped onto the bar, but both Roma and Atalanta went down to 10 men.
Juan Musso acrobatically prevented Mancini from opening the scoring at the Stadio Olimpico on a corner.
However, there was little the goalkeeper could do when Rick Karsdorp sparked a counter and Zaniolo set up Abraham.
It was a tense finale, as Marten de Roon saw red for dissent and Henrikh Mkhitaryan followed moments later.