Roma twice came from behind to earn a 2-2 draw with Inter in a pulsating Serie A contest at Stadio Olimpico.
Cengiz Under's long-range stunner cancelled out Keita Balde Diao's first-half opener, only for Mauro Icardi's thumping header to have seemingly set Inter on the way to three points.
But Marcelo Brozovic was penalised for handball, after a VAR review, and Aleksandar Kolarov hammered home the resulting penalty to earn a share of the spoils for Roma.
Inter, who failed to rebound from their midweek Champions League defeat to Tottenham, consequently head into Friday's Derby d'Italia at Juventus 11 points adrift of the Serie A leaders.