Atalanta, Juventus and Napoli are waiting to see what the Champions League Final Eight draw holds for them, while Inter and Roma are in the Europa League.
Both UEFA competitions were suspended in March due to the COVID-19 pandemic and the lack of time to complete them prompted a change of format.
There will now be a Final Eight mini-tournament of knockout games in August, with the Champions League hosted in Portugal, and the Europa League in Germany.
The draw for the Champions League and Europa League quarter-finals, semi-finals and Final will begin at 11.00 UK time (10.00 GMT) today in Lisbon.
There is no seeding and no country protection, so we could see two of the Italians drawn against each other.
Atalanta are the only Italian team already guaranteed a place in the Final Eight, as they were able to complete their Round of 16 victory over Valencia before the lockdown.
However, Juventus only played the first leg, losing 1-0 away to Olympique Lyonnais, and Napoli were held 1-1 at home by Barcelona.
UEFA confirmed yesterday that the second legs will be played at home grounds behind closed doors, and not moved to Portugal on neutral turf.
Atalanta, Atletico Madrid, Paris Saint-Germain and RB Leipzig are already in the quarter-finals.
The other first leg ties in limbo are Manchester City 2-1 Real Madrid and Bayern Munich 3-0 Chelsea.
The Last 16 second leg fixtures are set for August 7 and 8.
The quarter-finals then begin on August 12-15, the semi-finals on August 18-19 and the Final on August 23.
As for the Europa League, Inter-Getafe and Sevilla-Roma will become one-off clashes in Germany on neutral turf, as they were unable to play the first leg of their Round of 16 tie either.
The others were suspended with the following first leg results: Eintracht Frankfurt 0-3 Basel, Istanbul Basaksehir 1-0 FC Copenhagen, LASK 0-5 Manchester United, Olympiakos 1-1 Wolves, Rangers 1-3 Bayer Leverkusen, Wolfsburg 1-2 Shakhtar Donetsk.
The second legs and one-off ties will be on August 5-6.
The Europa League Final Eight then follows the same template as the Champions League, but in Germany.
The quarter-finals are on August 10-11, the semi-finals August 16-17 and Final on August 21.
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