Eusebio Di Francesco felt Roma did not get what they deserved after Porto grabbed a late away goal in the first leg of their last-16 Champions League tie.
Nicolo Zaniolo scored twice in a six-minute spell in the second half to put the hosts in control at the Stadio Olimpico, only for Porto to cut the deficit in half in fortunate circumstances.
Tiquinho Soares' ambitious shot from distance inadvertently set up substitute Adrian Lopez to score as the game finished 2-1 to Roma, leaving Di Francesco with mixed feelings.
Editors' Picks
The Roma boss was quick to praise his players for their "high-level" display after a mixed run of results in recent weeks, meaning they hold a slender lead heading into the return fixture on March 6.