After the Americans' 2-1 win over France in the quarterfinals, Morgan said the match lived up to expectations.
The U.S. held on with a 2-1 win over France to advance to the semifinals Tuesday.
Media reports have claimed Lyon star Tanguy Ndombele is close to joining Tottenham, but Jean-Michel Aulas insists no deal has been struck.
The Americans are still favorites, but France and Germany are close behind.
The U.S. is coming off a hard-fought win against Spain in the round of 16, while France barely got past Brazil.
The Olympic Games follow closely on from Euro 2020 but France forward Kylian Mbappe is keen to go to Tokyo next year.
France will head to the 2019 Rugby World Cup without Mathieu Bastareaud after their Six Nations vice-captain was left out of a 31-man squad.
The France forward has been linked with Real Madrid and Kylian Mbappe has denied handing PSG a list of demands for the 2019-20 season.
Kylian Mbappe was not in the mood to talk about Real Madrid following France's Euro 2020 qualifying win.