The European Professional Football Leagues (EPFL) on Friday threatened schedule clashes on Champions League matchdays in an ongoing dispute with the governing body UEFA.
The EPFL said at a general assembly in Porto, Portugal, that after the March 15 end of a memorandum of understanding with UEFA the leagues have "total freedom to schedule their matches as they see fit – including on the same days and at the same kick-off times as UEFA Club Competitions."
Under the memorandum top leagues did not play on Champions League and Europa League matchdays.
The EPFL has complained it wasn't consulted ahead of Champions League and Europa League reforms for 2018-2021, which it said had a "detrimental impact on the competitive balance of domestic competitions and on the development of professional football as a whole."
The EPFL has called an extraordinary assembly for June 6 in Geneva, while at the same time continue talks with UEFA over the issues.