Infection sidelines Aron Johannsson for Switzerland friendly, U-23s' Jordan Morris called up in his stead

Aron Johannsson and Jozy Altidore won't have a second European friendly to build on their burgeoning strike partnership.

U.S. Soccer announced on Sunday morning tha Johannsson has been sidelined while undergoing treatment for an infection and will not be available for Tuesday's match against Switzerland (12 pm ET; Fox Sports 1, UniMas, UDN).

• READ: Johannssonn eager to return to "competitive arena" after setbacks

In his place, Jurgen Klinsmann called up U-23 forward Jordan Morris, who joins the senior team after scoring the opening goal in the U-23's 5-2 win against Bosnia-Herzegovina on March 27 in Tuzla.

USMNT roster vs. Switzerland:

GOALKEEPERS (3): Cody Cropper (Southampton), Nick Rimando (Real Salt Lake), William Yarbrough (Leon)

DEFENDERS (8): Ventura Alvarado (Club America), John Anthony Brooks (Hertha Berlin), Timmy Chandler (Eintracht Frankfurt), Greg Garza (Club Tijuana), Michael Orozco (Puebla), Tim Ream (Bolton), Brek Shea (Orlando City SC), DeAndre Yedlin (Tottenham Hotspur)

MIDFIELDERS (8): Alejandro Bedoya (Nantes), Michael Bradley (Toronto FC), Julian Green (Hamburg), Miguel Ibarra (Minnesota United FC), Fabian Johnson (Borussia Monchengladbach), Alfredo Morales (Ingolstadt), Danny Williams (Reading), Gyasi Zardes (LA Galaxy)

FORWARDS (4): Jozy Altidore (Toronto FC), Jordan Morris (Stanford), Rubio Rubin (Utrecht)