The Premier League trio all booked their spots in the last 16 of either the Europa League or the Conference League thanks to their efforts in the new fangled league phase.
Man Utd and Spurs both finished in the top eight of the Europa League league phase and, as a result, bypassed the need to participate in a play-off round to reach the last 16 proper.
Dutch side AZ Alkmaar thrashed Galatasaray 6-3 on aggregate to book their spot in the last 16, while Real Sociedad had a close-run affair over two legs against Midtjyland but still came out on top 7-3.
FC Copenhagen's 4-3 aggregate win over Heidenheim and Real Betis' two-legged victory over Gent, means it'll be one of Betis or Copenhagen who face the tough task of taking on the Londoners in the next round.
That's where Chelsea will also learn their fate too, as they await their last 16 opponents after topping the Conference League table with a flawless league phase campaign.
