After a goalless first half, substitutes Felix Afena-Gyan and Nicolo Zaniolo were on target for the Italian side after the break.
Sunderland will now prepare to return to Wearside before travelling to Dundee United for their next pre-season fixture on Saturday.
Our chief SAFC writer Phil Smith has delivered his verdict on how each Sunderland player fared against Roma.
The Sunderland Echo's coverage of SAFC in Portugal is brought to you in association with Flex Joinery. Visit www.flexjoinery.co.uk for further details.
14. Harrison Sonha (sub) - 5
Neat and tidy on the ball when it came to him. 5 Photo: National World
15. Alex Pritchard (sub) - 6
Some good touches as Roma saw the game out. 6 Photo: JPI Media
16. Patrick Roberts (sub) - N/A
Very little chance to really make an impact. N/A Photo: Frank Reid
4 / 5