France coach Philippe Saint-Andre said it's back to the drawing board ahead of their date against Wales in Paris after Italy kicked their Six Nations hopes into touch with an impressive 23-18 win on Sunday.
Les Bleus' last visit to Italy, in March 2011, ended in a 22-21 defeat at nearby Flaminio Stadium and handed the Azzurri their first ever Six Nations win over France.
Two years on, Jacques Brunel's steadily improving side put in a strong, convincing display that should send future opponents rushing to study video footage.
"The grand slam is lost, not the tournament. Now we have to turn our attention to Wales before they come to Paris next week," said Saint-Andre, who was quick to congratulate Italy's performance.
"You have to says hats off to Italy.
"They're 10th in the (world) rankings, they're improving all the time and today they simply deserved to win."
After a promising November Test series produced three wins over Australia, Argentina and Samoa, France were regarded as tournament co-favourites along with England.
But at the Olympic Stadium, and with Italy desperate to build on some strong performances of their own from November, against Australia and New Zealand, the hosts had other ideas.
Italy went 7-0 up after seven minutes when captain Sergio Parisse touched down for a try and Luis Orquera, who went on to kick ten points, converted.
France battled back on 11 minutes when Louis Picamoles scrambled over for the try, only for fly-half Frederic Michalak to miss the conversion.
It was the first of several errors that would prove costly for the visitors.
Crucially, France then spurned the chance to add another five-pointer when Wesley Fofana's off-load to the unmarked Fulgence Ouedraogo on the right went into touch.
France fought back to take a 15-13 halftime lead after Benjamin Fall's 33rd minute try and a conversion from Michalak, who had also scored a penalty just before the half-hour.
But the visitors ultimately failed to finish off the job when in try-scoring positions in the second half.
"We lacked in terms of precision, we gave the ball away too often and didn't take the chances we had to pull ahead when we had the chance to," lamented Saint-Andre.
"We had the chance to score a try through Maxime Machenaud but instead of building on that we let Italy counter."
Orquera's replacement, Kris Burton, provided what turned out to be the match-winning drop goal in the 68th minute.
After the stadium erupted, the Italians were ecstatic at having transformed recent promise into a result that will do wonders for their confidence in their remaining four fixtures.
"It's a very important for us, especially as it confirms what we showed in November," said Parisse.
"It's important to back these kinds of performances up with real results."
With the Scots up next for Italy at Murrayfield next Saturday, Brunel wanted to keep everyone's feet on the ground.
"Everyone says Scotland are not a great team at the moment but they are a hard team to play against, especially at Murrayfield."