The Americans will face Sweden, Norway and England.
Stengel, who recently helped Bayern Munich win its first German women's title since 1976, Ubogagu and University of Texas goalkeeper Abby Smith were part of the U.S. team that won the 2012 U-20 Women’s World Cup in Japan.
The roster includes seven members of the U.S. team that fell on penalty kicks to North Korea in the quarterfinals of the 2014 U-20 Women’s World Cup: Stanford goalkeeper Jane Campbell, Duke defender Christina Gibbons, Notre Dame defender Cari Roccaro, Stanford defender/midfielder Andi Sullivan, Wisconsin midfielder Rose Lavelle, Florida forward Savannah Jordan and Harvard forward Margaret Purce.
U.S. U-23 Women’s National Team
GOALKEEPERS (2): Jane Campbell (Stanford; Kennesaw, Ga.), Abby Smith (Texas; Plano, Texas).
DEFENDERS (6): Christina Gibbons (Duke; Raleigh, N.C.), Jaycie Johnson (Nebraska; Lake Winnebago, Mo.), Kayla Mills (USC; West Covina, Calif.), Carson Pickett (FSU; Fleming Island, Fla.), Cari Roccaro (Notre Dame; East Islip, N.Y.), Andi Sullivan (Stanford; Lorton, Va.).
MIDFIELDERS (7): Daphne Corboz (Manchester City FC; Greenbrook, N.J.), Katie Cousins (Tennessee; Forest, Va.), Claire Falknor (Florida; Dayton, Ohio), Michaela Hahn (FSU; Titusville, Fla.), Rose Lavelle (Wisconsin; Cincinnati, Ohio), Ashley Meier (Virginia Tech; Strongsville, Ohio), Alexis Shaffer (Virginia; Cary, N.C.).
FORWARDS (7): Savannah Jordan (Florida; Fayetteville, Ga.), Margaret Purce (Harvard; Silver Spring, Md.), Jessie Scarpa (UNC; Lakeland, Fla.), Taylor Smith (UCLA; Fort Worth, Texas), Katie Stengel (Bayern Munich; West Melbourne, Fla.), Chioma Ubogagu (Arsenal; Coppell, Texas), Christen Westphal (Florida; Brecksville, Ohio).