Corentin Tolisso struck twice as Bayern Munich beat Paris St Germain 3-1 and briefly threatened to usurp the Ligue 1 side at the top of Group B.
Chelsea and Manchester United progressed to the knockout stages, in second and first place respectively, while Celtic claimed third to guarantee European football in the New Year in the form of the Europa League.
The result means that Antonio Conte's team surrendered top spot in Group C to Roma and could now face a daunting prospect in the knockout stages. We know PSG and Barcelona are very good but we are Chelsea so we have to be ready for everything.
The fact that they can not play Real Madrid again in the next round probably gives them the most favourable list of potential opponents. "We reached the next round and we must be happy with this".
Conte says Chelsea fear no-one in Europe's elite club competition, but reckons the strength in depth of the domestic league makes winning the European Cup hard for English clubs.
"We should have won that game", Cahill said.
In fact their only three options are Barca, PSG and Besiktas.
He told BT Sport: "Their goalkeeper (Jan Oblak) was on fire".
Minutes after Blues old boy Filipe Luis had rattled a post, Saul Niguez gave the visitors a 56th-minute lead, and although the home side were level with 15 minutes remaining courtesy of Stefan Savic's own goal, they could not find a victor.
Unlike Torres, his compatriot Alvaro Morata has had no problems adapting to life at Chelsea and he showcased his deft touch to make space for a curling shot that flashed just wide.
It was everything you'd expect from a match-up between these sides. "We can do anything".
"I think in terms of general play they did everything they had to do".
"Chelsea shouldn't fear anyone at the moment".