Arsenal manager Arsene Wenger has warned Uefa the integrity of the Champions League will be at risk if they adopt Michel Platini's proposal to include cup winners and an increased number of teams from lower-ranked nations.

This season's group stages have seen Arsenal beat Slavia Prague 7-0 and Liverpool thrash Turkish champions Besiktas 8-0.

Wenger fears Platini's proposals would undermine the competition further and he also harbours concerns about the status of the Uefa Cup.

"You have to be careful not to change the Champions League too much by bringing in even more weaker teams, because you could find yourself with games five and six with no meaning. That would be very dangerous for the quality of the competition," said Wenger.

"The Uefa Cup has a different problem. The mistake there is that, with groups of five, the best three teams qualify (for the knockout stages). That means with four points you can go through. That is not serious."

Platini's proposal is based on the desire to make the Champions League more accessible across Europe. Only 15 of Uefa's 53 member nations are represented in the group stages this year.

He is determined to include six champions from the bottom 40 countries of Uefa's membership, though demands for cup winners to also be included received a lukewarm reception from national associations.

Liverpool manager Rafael Benitez has backed Sven-Goran Eriksson's call for Premier League clubs to be allowed seven substitutes.

Eriksson last week said he would prefer seven players on the bench instead of five. And Benitez would like to see a similar system as used in Spain, where seven subs are allowed as long as two are under 20.

"I would back an idea to have seven substitutes on the bench," Benitez said."It is important to have some young players on the bench. If these sort of players can get some games, or short spells on the pitch when maybe things are going well, then they will gain experience quicker."

Newcastle manager Sam Allardyce has warned the introduction of restrictions on when a manager could be sacked would bring further chaos into football.

Allardyce, an unabashed opponent of the transfer window system for players, is equally unimpressed with Fifa president Sepp Blatter's suggestion of similar rules aimed at curbing the frequency of managerial departures.

He said: "Absolutely not. There would be utter chaos in that particular window like there is utter chaos in the transfer window. To have a managers' window would cause even bigger chaos, as far as I am concerned."