Head coach Antonio Conte and playmaker Eden Hazard appeared to welcome the prospect, but Cahill insisted his preference would be for such ties to come later in the competition.
Group winners are drawn against second place sides and play away first, with the second legs at home.
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No English club can play another in the next round of the competition. The Blues became the first holders to exit at the group stage the following season, responding to win the 2013 Europa League.
Bayern claimed revenge for their drubbing at the hands of PSG earlier in the season, but nevertheless finished second in Group B behind the French giants. It was a painful moment for Atletico who finished as UCL runners-up in 2014 and 2016.
Causing Atletico all manner of problems, Morata almost caught out Oblak with a dipping strike from wide on the left that had the keeper scrambling to save. That means Chelsea cannot draw Roma, Manchester United cannot be drawn to play against Basel and Tottenham will not be up against their Group H opponents Real Madrid.
"How we've not won that game is incredible. Jan Oblak was fantastic today, he's had an amazing game".
Qarabağ became the first Azerbaijani side to get this far, even if they did finish bottom of their group, while Beşiktaş are the first Turkish side to ever win a Champions League group.
Conte's focus through a period crowded with fixtures is to take a step-by-step approach. "We didn't fail. This can happen". Barcelona, the greatest attacking side of the past decade, showed a wholly different side to their game.
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