Who will the English teams face?
Arsenal; Group D
Manager: Jürgen Klopp
Key man: Marco Reus
Last season’s German runners-up face Arsenal for a third time in four group stages. Weakened by loss of Robert Lewandowski.
Manager: Cesare Prandelli
Key man: Wesley Sneijder
Turkish runners-up went out to Chelsea last season and have lost Didier Drogba. Emmanuel Eboué will be a popular returnee to London.
Manager: Besnik Hasi
Key man: Aleksandar Mitrovic
Belgians last visited England in 2007, drawing with Spurs. Have gone out at the group stage in the last two seasons.
Chelsea; Group G
Manager: Jens Keller
Key man: Julian Draxler
Will not be underestimated and boast good attacking threat from Draxler, Kevin-Prince Boateng and Klaas-Jan Huntelaar.
Manager: Marco Silva
Key man: Fredy Montero
Battling to hold on to William Carvalho amid interest from Arsenal and Manchester United, the Portuguese make their first appearance since 2009-10.
Manager: Ante Simundza
Key man: Marcos Tavares
Succeeded where many have failed in eliminating Celtic. Last competed at this stage in 1999-2000, when they achieved just one win.
Liverpool; Group B
Manager: Carlo Ancelotti
Key man: Cristiano Ronaldo
The holders return to Anfield still smarting from a 4-0 loss five years ago. Gareth Bale will be keenly watched.
Manager: Paulo Sousa
Key man: Marco Streller
Swiss champions will need no introduction, having faced Chelsea and Spurs recently. Former Red Philipp Degen provides the Anfield link.
Manager: Aleksandar Aleksandrov
Key man: Cosmin Moti
Bulgarian minnows provided a fairy tale as defender Moti donned the gloves to help beat Steaua Bucharest on penalties.
Manchester City; Group E
Manager: Pep Guardiola
Key man: Arjen Robben
Champions in 2013 before being embarrassed by Real Madrid in last season’s semi-finals. Traded away wins with City last season.
Manager: Yevgeni Giner
Key man: Alan Dzagoev
City will not relish travelling to Russia to play another side they took on last season. Yaya Touré was racially abused, a fact that will further crank up this tie.
Manager: Rudi Garcia
Key man: Francesco Totti
The Italians complete a tough draw for City as Ashley Cole gets his return after leaving Chelsea this summer. Totti and Gervinho are familiar foes.