The first round: 32/8 = 4, each group has four teams, so in the round robin, the number of matches in each group is a combination of 2 out of 4, that is, C 4 2 (4 is the subscript of C, 2 is the superscript of C) =6, so the total number of matches is 6 * * = 48.

The second round: the top two in each group entered the 16 knockout stage. At this time, the number of games is easy to calculate. There is no need to use the combination method in the knockout. 16 takes 8 games, 8 takes 4 games, 4 takes 2 games, and then the final.

So the total * * * is 48+8+4+2+ 1=63 fields.