The elimination of Uzbekistan and Panama from the tournament is the latest development.
Both nations were eliminated after losing their opening two matches.
After losing 3-1 to Colombia in their initial match, debutant Uzbekistan were crushed 5-0 by Portugal.
Both Panama and Ghana lost by a single goal in Group I. Croatia’s defeat was much narrower.
They will be joining other nations who have already confirmed their departure, such as Haiti, Turkey, Tunisia, and Jordan.
With this new format, the top eight teams from each group will advance to the next round of 32.