Clubs learn Champions League fate
Celtic face a difficult task in the Champions League after the draw for the group stage paired them with holders AC Milan, Benfica and Shakhtar Donetsk.
Rangers also face a tough task, against Barcelona, Lyon and Stuttgart.
Chelsea have been drawn with Valencia, whom they defeated at the quarter-final stage of last season's competition.
Liverpool take on Porto, Marseille and Beskitas, while Manchester United face a rematch with Roma and Arsenal face trips to Bucharest and Prague.
Arsenal were drawn in Group H along with Steau Bucharest, Slavia Prague and either Sevilla or AEK Athens.
The qualifying tie between Sevilla and AEK Athens was supposed to be concluded on Tuesday but was postponed following the death of Spanish international Antonio Puerta from a heart attack.
Gunners managing director Keith Edelman said: "I think it is the first time we have had a draw in which we have never played any of the teams we have been drawn against."
United, drawn in Group F, played Roma in a quarter-final tie last season, thrashing the Italian side 7-1 in the second-leg at Old Trafford to complete an aggregate 8-3 victory.
However, the tie was marred by violence during the first match in Rome.
Celtic have also been drawn against opposition they met in last season's competition, the Scottish club running eventual champion's Milan close as they battled for a place in the quarter-finals.
The tie was goalless after the first leg at Celtic Park, before Gordon Strachan's team lost 1-0 in extra-time in the second leg at the San Siro.
Celtic chairman Brian Quinn said: "It is a tough group, we have played them all recently and we know their quality.
"But we qualified last year from a very tough group so I am not down-hearted at all."
Scottish rivals Rangers, however, face an extremely tough task against Spanish giants Barca, French champions Lyon and Stuttgart, who won the German title last season for the first time in 15 years.
Chelsea defeated Valencia to reach last season's semi-final, with Michael Essien scoring in the last minute of the second-leg in Spain to secure a 3-2 aggregate victory.
Jose Mourinho's team also face Schalke and Rosenborg in Group B.
Liverpool chief executive Rick Parry was pleased with his team's draw, which includes a trip to Turkey to play Besiktas.
"We are happy enough," said Parry. "We have happy memories of Istanbul.
"We have proved we are capable of beating anyone on our day and we have a better squad this season."
Draw for the 2007/08 Champions League
British teams and the top seeds in CAPITALS
Group A
LIVERPOOL
Porto
Marseille
Besiktas
Group B
CHELSEA
Valencia
Schalke 04
Rosenborg
Group C
REAL MADRID
Werder Bremen
Lazio
Olympiakos
Group D
AC MILAN
Benfica
Celtic
Shakhtar Donetsk
Group E
BARCELONA
Lyon
Stuttgart
Rangers
Group F
MANCHESTER UNITED
Roma
Sporting Lisbon
Dynamo Kiev
Group G
INTER MILAN
PSV Eindhoven
CSKA Moscow
Fenerbahce
Group H
ARSENAL
Sevilla/AEK Athens
Steau Bucharest
Slavia Prague
