The format of the final tournament will consist of six groups of four teams, followed by a round of 16, quarter-finals, semi-finals and final. The top two from each group would qualify in addition to the four best third-ranked sides, the same system as was applied in the World Cups from 1986 to 1994. This format would generate a total of 51 games, compared with 31 now, to be played over a period of 29-31 days. UEFA's general secretary Gianni Infantino said that the new format was "not ideal" and that UEFA was not sure of the detail of the format.