Media reports said earlier on Thursday that A22 had entered exploratory talks with UEFA officials to discuss a possible framework for a new competition.
According to the letter, Theodoridis cautioned against plans outlined in the King's Speech to give the new regulator the power to oversee clubs in England's top five leagues, saying the game's independence was a "fundamental requirement".
The final was delayed by 36 minutes after thousands of Liverpool supporters were unable to get into the Stade de France for the match
Angel Maria Villar, the interim UEFA President, and General Secretary Theodore Theodoridis are bookmaker William Hill's favourites at 6-1 to replace Michel Platini as head of the European soccer's governing body.
Kiev's Olympic stadium will host the final of the 2018 Champions League, the first final of Europe's top club competition to be held in Ukraine, UEFA said on Thursday.
Banned UEFA president Michel Platini will be allowed to attend matches at the European soccer Championship providing he does not do it in any official role, the European governing body's acting general secretary said on Wednesday.
The top four European leagues will each have four guaranteed places in the Champions League group stage from 2018/19 under changes announced by European soccer body UEFA on Friday.
Iceland's run to the quarter-finals of Euro 2016 showed that a Nordic island known for its volcanoes and pioneering geothermal power has the potential to generate plenty of its own talented footballers too.
Iceland's fairytale progress to the last eight of the European Championship is just what the competition needs to prevent it going stale and a model for smaller nations to realise their dreams, UEFA said on Tuesday.