Was definitely not at faul for either Florenzi's header or Osvaldo's deft finish, but he will be disappointed with himself after getting beaten by Marquinho at the near post.
An encouraging debut from the left-sided player. He always wanted the ball and demonstrated a good touch and an ability to beat players in tight areas. However, his crossing was desperately poor and he faded badly. Still, more to come.
A fiesty presence down the left-hand side, the Japanese acquitted himself very well indeed in what was a spiky duel with Destro. Indeed, it was a physical test of strength that the diminutive Japanese passed with flying colours. At the other end, he went close to scoring with a well-struck drive, but he did not get forward as much in the second half.
There were signs at the Adriatico last weekend that time is finally catching up on Zanetti and there was further evidence at San Siro that this might very well be the case. His passing was unusually poor while he really should have made a greater effort to cut out Totti's cross.
Looked steady enough during the first half but the second half was a different story altogether. He was booked for a reckless challenge on Marquinho and then reverted to type as Inter unravelled in the final quarter.
Made several vital interceptions, including a terrific block on a goal-bound effort from Osvaldo. However, he was marking nobody when Florenzi headed home and the centre of the Inter defence looked increasingly vulnerable the longer the game wore on.
The Dutchman struggled to get himself into the game but he did produce a sublime outside-of-the-foot cross which Milito went desperately close to converting. One free-kick aside, he never threatened a goal and just did not see enough of the ball to make something happen.
Initially picked up where he left off at Pescara last weekend, breaking up play and distributing the ball sensibly and swiftly. However, he really should have been tracking Florenzi for the opener, while his influence waned the longer the game went on.
A ridiculously frustrating player, Guarin is capable of some pinpoint passing and nimble footwork in possession, but he is often guilty of over-complicating things and giving the ball away.
Another encouraging display for the enigmatic forward, who drew Inter level with a deflected effort just before the break. Was always alive to the short-corner during a first half in which he played some wonderful lay-offs, as well as a couple of terrific through-balls, one of which very nearly led to Milito earning a penalty.
Positioning himself on the should of the last defender, the Argentine was caught offside several times, but he also very nearly earned himself a couple of penalties. Still, he should have done better with a near-post header after shrugging off Balzaretti to get himself on the end of Sneijder's left-wing cross.
Made a big call in rushing off his line after Milito had been put straight through but his decision was vindicated, the Dutchman palming the ball away to safety as the Argentine tried to round him. In light of the farcical nature of Inter's equaliser, can count himself unlucky not to have kept a clean sheet.
Made a number of great tackles and brave blocks, but he was a little bit over zealous at times and was lucky to avoid going into the referee's notebook after twice going through the back of Cassano. Also failed badly to prevent the attacker's from getting the shot away that led to Inter's equaliser.
Really had his hands full with Pereira during the first half but he stood up well to the challenge and ultimately outlasted the former Porto man.
It would be a shame if Inter's equaliser goes down as a Burdisso own goal because the Argentine played a key role in Roma's fine rearguard action. Caught out a couple of times by compatriot Milito but that was more a product of the visitors' high line.
Always a willing runner down the left wing, the versatile full-back played a key role in keeping Zanetti pinned back inside his own half. However, he got away with a slight tug on Milito in the area during the first half and his evening was ultimately cut short by injury.
D. De Rossi
Tried valiantly to play on after coming off worse after a hefty collision with Pareira, but was eventually forced off just after the half-hour mark. Had been enjoying the cut and thrust of a full-blooded encounter up until that point.
Covered an awful lot of ground in midfield and was never afraid to put the boot in - or indeed put his head in where it hurts. The one negative was his rather bizarre decision to position himself 10 metres behind his central defenders at one point during the first half, thus playing Sneijder onside.
Surprisingly handed his first Serie A start by Zeman and repaid his coach's faith in him with an energetic and fearless display that was capped by a brilliant headed goal.
Put quite simply, the best player on the pitch. His touch was a joy to behold, while he caused chaos every single time he dropped deep to pick up the ball. His cross for Florenzi's opener was sublime, but his through-ball for Osvaldo was just heavenly. At nearly 36, still a world-class performer.
Worked his socks off up front and felt he wasn't getting a fair share of frees from the officials, with his frustration eventually manifesting itself in a booking and ultimately a stupid red card. Snatched at two openings early in the second period but kept his cool, which is a pretty apt description of the finish that decided the game in Roma's favour.
Never stopped running and made a couple of incisive runs at various intervals in the game, but he came off a clear second best in his entertainingly competitive duel with Nagatomo, with Destro picking up a booking for a clumsy challenge on the Japanese.
Came on in place of the injured Balzaretti just over 10 minutes into the second half.
Came on in place of Destro with 20 minutes remaining but did not really influence the proceedings.
Saw more game time than he would have expected, having been thrown on in place of the injured De Rossi 32 minutes in.