TORONTO -- The U.S. Olympic Committee has announced a 623-member team for the Pan American Games.

That number will be trimmed slightly, however. The preliminary 24-player men's basketball team will be reduced to 12 by July 15. And one male and one female replacement athlete are expected to be named in the coming days for track and field to complete the team.

The Games start Friday in Toronto and run through July 26.

The U.S. team, which has finished first in total Pan Am medals in all but one appearance, is smaller than Canada's 720-member squad.

"Every four years the Pan American Games afford U.S. athletes the rare opportunity to represent their country in a multi-sport setting outside the Olympic Games," USOC CEO Scott Blackmun said in a statement Monday.

"Some of the most decorated U.S. athletes in their sports will be competing alongside athletes representing the United States for the first time, and I'm confident this group will make our nation proud. The Pan Am Games are especially important for the 10 sports that have direct Olympic qualification on the line, and we are excited to support all our athletes in every way possible."

The U.S. Pan American squad features 111 Olympians, including 38 Olympic medallists and 20 Olympic champions.

It includes swimmer Natalie Coughlin, who is one of the three most decorated women in U.S. Olympic history with 12 medals.

Other notable athletes on the U.S. roster include defending Olympic champions Jordan Burroughs (wrestling), Kayla Harrison (judo), Claressa Shields (boxing) and Jenn Suhr (track and field), along with four members from the 2012 U.S. Olympic champion women's water polo team.

"Our 2015 roster is not only our biggest team to date, but one of our best," said Alan Ashley, U.S. chef de mission and USOC chief of sport performance. "The Pan American Games often serve as a pathway to Olympic qualification, but more than that, they bring our athletes together as one Team USA. This event is a career highlight for our athletes and staff, and we look forward to 17 days of friendly, world-class competition in Toronto."

The Americans will be competing in every sport on the Pan American program with the exception of soccer and team handball.