The European Tour will not co-sanction next year's WGC-Bridgestone Invitational as it clashes with the 100th edition of the Open de France.
A re-working of the PGA Tour's 2016 calendar to accommodate the Olympics, where golf will return again, has seen the Firestone event brought forward to the end of June and into the same slot accommodated by the Open de France.
The Open de France is Europe's oldest national Open Championship held outside Great Britain and has been a fixture since the Tour's formation in 1972, and in what is one of new European Tour CEO Keith Pelley's first major contributions since taking over from George O'Grady, the decision not to co-sanction with the PGA Tour means the Bridgestone Invitational will not be part of the 2016 European Tour international schedule.
It also means money earned at the World Golf Championship will not count towards that year's Race to Dubai or the European team's Ryder Cup points.
"The Albatros Course at Le Golf National is currently undergoing renovation to prepare not only for next year's landmark tournament, but also for the staging of the Ryder Cup in 2018," Pelley said.
"The Open de France has been a staple on our Tour since 1972 and we are confident that next year's event, with an increased prize fund alongside the current renovations to the golf course, will properly reflect the importance of the tournament alongside the 100th anniversary celebrations."
Responding to the European Tour's decision, the PGA Tour issued the following statement: "Coordinating a worldwide professional golf schedule always has its challenges. Those challenges were even more acute for 2016 with addition of golf's inclusion in the Olympic games.
"Several events were impacted and while we have had numerous conversations with the European Tour with respect to the scheduling of the World Golf Championships-Bridgestone Invitational, we were ultimately unable to find a solution that satisfied all parties. We look forward to staging a successful Bridgestone Invitational in 2016."
This year's Bridgestone Invitational, which ended last Sunday, was won by Shane Lowry, while Austrian Bernd Wiesberger lifted the Open de France last month.
Membership of the European Tour has a requirement to play in 13 tournaments a year and, in the past, with four majors and four WGC events counting towards that total the world's top golfers - most of whom base themselves in the United States - were able to easily plan their schedule to meet the criteria.
Withdrawing the Bridgestone's sanction will now mean a rethink of next year's plans for some players.