The defending champion Portland Thorns visit the North Carolina Courage, while the league's newest team visits Alex Morgan's Orlando Pride.
As of now, it's likely to be the Union's only summer friendly against an international opponent. Eintracht's headline name to American fans is Timothy Chandler, an occasional U.S. national team right back.
The veteran Brazilian suffered an MCL sprain and a slight meniscus tear Saturday against the Columbus Crew.
Ibrahimovic is expected to arrive in Los Angeles next week, and could be available to play on March 31 when the Galaxy play expansion LAFC.
Leading the Italian League as it pursues a seventh straight Serie A title, the Bianconeri will be the latest high-profile European club to face MLS' top players in the annual showcase.
Julie Ertz will miss the U.S. women's soccer team's two-game series against Mexico in April due to a knee injury she suffered while playing for the national team at the SheBelieves Cup a few weeks ago.
The U.S. Soccer Federation has extended Dave Sarachan's contract as men's national team interim coach through the end of June, almost assuring no permanent hire until after the pro leagues and World Cup are completed.
For better or worse, the bid will be won with jet-setting around the world to wine and dine some of world sport's most unsavory characters. The bid's chiefs know their promises of clean money and transparent governance are seen by some in the global game as vices, not virtues.
Tim Weah, a son of former world player of the year and current Liberia president George Weah, is among seven players who could make their U.S. Soccer debuts in an exhibition against Paraguay on March 27 at Cary, North Carolina.
After not being able to play in the Union's season opener, Czech playmaker Borek Dockal is finally ready to take the field.
Sugarman said the Union bought the full available allotment of funds from Major League Soccer's discretionary targeted allocation money pool.
The formal bid to bring the 2026 World Cup to the United States, Canada and Mexico has been filed to FIFA, global soccer's governing body, and Philadelphia is one of the 23 potential host cities included.
It will be the men's national team's first trip to Chester since the 2015 Concacaf Gold Cup, and its first to the Philadelphia region since the 2016 Copa América Centenario.