Chris Smalling’s header saw Roma come from behind to beat Inter in Serie A for the first time in over five years.
Federico Dimarco gave Inter a first half lead at San Siro, but Paulo Dybala equalised against the side he was heavily rumoured to join before he completed a move to Roma.
Hakan Calhanoglu struck the crossbar with a ferocious free-kick in the second period, before Smalling scored the winning goal to inflict more misery upon Simone Inzaghi’s side.
Inter have now lost back-to-back Serie A matches and three of their last four, drifting eight points behind early pacesetters Napoli.
Edin Dzeko saw an early attempt, which would have been his 100th Serie A goal, disallowed for offside but Dimarco broke the deadlock on the half hour mark, teeing Nicolo Barella’s threaded pass into the bottom corner to take the lead with an effort Rui Patricio will feel he should have done better with.
The lead lasted less than 10 minutes though, Dybala volleying home Leonardo Spinazzola’s cross past Samir Handanovic to secure his fourth Serie A goal of the season.
A timid start to the second period saw few opportunities but Calhanoglu was inches away from pushing Inter ahead again, firing a free kick off the frame of the goal shortly after the hour mark with Patricio stranded.
15 minutes later, the visitors scored their winner as Smalling found space to head Lorenzo Pellegrini’s free-kick home with ease – a VAR check showing the defender was not offside and instead the beneficiary of lacklustre marking.