First up, a list of all the teams involved:
AFC Ajax (NED)
Beşiktaş JK (TUR)
Club Brugge KV (BEL)
FC Dinamo Moskva (RUS)
FC Dnipro Dnipropetrovsk (UKR)
FC Dynamo Kyiv (UKR)
Everton FC (ENG)
ACF Fiorentina (ITA)
FC Internazionale Milano (ITA)
SSC Napoli (ITA)
AS Roma (ITA)
Sevilla FC (ESP, holders)
Torino FC (ITA)
Villarreal CF (ESP)
VfL Wolfsburg (GER)
FC Zenit (RUS)
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A note on the draw procedure... Based on the decision taken by the UEFA Emergency Panel, teams from Russia and Ukraine shall not be drawn together. This decision concerns four clubs: FC Dinamo Moskva (RUS), FC Zenit (RUS), FC Dynamo Kyiv (UKR) and FC Dnipro Dnipropetrovsk (UKR). Thus, the first two pairings to be drawn will be those involving the two Ukrainian clubs (FC Dinamo Kyiv and FC Dnipro Dnipropetrovsk).