1. Teams under the same football association will not touch in the first round.
2. Don't meet each other yet.
The two groups will not meet for the second time.
4. The first and second in the same group do not meet each other.
The group is the first guest before the host, and the group is the second host after the guest.
UEFA holds executive committee meeting in Nyon, Switzerland.
At the meeting, it was decided to introduce "goal line technology" into the 20 16 Champions League and Europa League finals. In June+10 of that year, UEFA announced that it would formally introduce "goal line technology" in this year's European Championship and next season's European Champions League. After this meeting, the introduction of "goal line technology" into the official competition of UEFA was advanced again.
As early as 20 13/20 14 season, the Football Association has introduced "goal line technology" into the Premier League to help referees judge whether the ball has crossed the goal line as a whole, which can effectively avoid the "goal line mystery" between England and Germany in the 1966 and 20 10 World Cups.
Also in 20 14, FIFA officially introduced this technology in the World Cup. After two years, UEFA also began to accept this technology: the Europa League final held in Basel on May 18, 2006 and the Champions League final held in Milan on May 28 will be its rehearsal before the European Championship.