The former goalkeeper turned Chief Executive Officer is pushing European colleagues to join them.
The 48-year-old believes the premier club tournament is leaving mid-sized country teams behind.
Despite fans not getting on, Ajax and Celtic know all about the pressures as both play several qualifiers each year.
Ajax are the name Celtic want to make a statement
The Hoops have wanted change to the competition for years but it’s fallen on deaf ears.
Furthermore, fans outside of Scotland may believe you have to earn it to make it when it comes to the Champions League.
However, it’s all relative when the big four leagues have third and fourth placed teams in the competition.
The Bhoys must face a gruelling early season where they jet off to far off lands outside of Europe to qualify.
With another European heavyweight in Ajax also making the same noises, this gives the Hoops’ argument even more weight.
Van der Sar is also a massive name in football and he works with Peter Lawwell at the European Club Association.
ECA pushing for change to Champions League
Ajax and Celtic will need more names to back their proposals for change it will need to come from other ECA clubs.
He told the Scottish Sun: “I have been talking to Peter Lawwell for some time.
“The ECA is talking to UEFA, trying to make sure there’s more participation and possibilities for clubs from medium and smaller countries, so we can develop and play football at this level.
“Maybe we should look at the club’s co-efficient and see what they have done in Europe, rather than the national co-efficient. And not just recent years.”
If this proposal was to be approved, then it will be a massive shot in the arm for both clubs.
It is normally Ajax and Celtic who are the most successful clubs in Europe from their leagues.
The Dutch league is far stronger though than the Scottish Premiership when it comes to the top half.
If both men can work together and revamp the Champions League to literally represent its name, then it is a win for football.