UEFA currently plans to end this year’s competition via a 12-day mini-tournament, with Lisbon hosting all quarter-finals, semi-finals and the final this month.
But looking to the future, Rummenigge believes it is important for clubs and UEFA to ensure “more meat to the bones” in the round of 16 of the competition.
“The model will hit like a bomb. The biggest thrill for the fan is the knockout system, ”Rummenigge told Kicker when asked about the new format.
“In two games, the best team always wins, based on experience, anything is possible in one game. You can beat a better team or lose to a worse team. ”
Before adding: “There was once an idea called Football Week. The idea behind it would have been: the two semi-finals and the final in a city, played in one week.
“This has been discussed before, but it was put aside again. There is now a discussion about reform for 2024. If I can recommend one thing: we need to do something when it comes to the knockout stage.
Want to know more about Jadon Sancho and United transfers? Get the latest Manchester United news and analysis every day straight to your inbox with our free MUFC newsletter
Register here – it only takes a few seconds.
“I don’t think we need a bigger group stage, it’s already decided with eight groups and four teams on matchday four or five.
“It doesn’t knock the audience off their seats. We have to make sure that we bring more meat to the bones during the knockout phase.
“You have to make sound decisions for reform to lead to greater hunger for the Champions League. ”
While Rummenigge also believes that it should be a question of quality rather than quantity and that no time pressure should be placed on the talks.
He said: “The ECA, the leagues, are involved because they have to live with the effects. The talks are starting now.
“The original plan was for a decision to be made in November, which I can’t imagine. You don’t have to put yourself under pressure.
“Most importantly, at the end of the day, you find a reform that makes the Champions League even more attractive – and not wider. I am a friend of quality, not quantity.
“There will be reform. It is a fundamental decision of European football. There are several options on the table. I recommend quality over quantity. “