According to MLS, here's the extensive list of players from US-based clubs who will be representing their national teams during the international window.

Atlanta United

• Luis Abram (D, Peru)
• Thiago Almada (M, Argentina)
• Giorgos Giakoumakis (F, Greece)
• Efrain Morales (D, Bolivia)
• Saba Lobjanidze (F, Georgia)
• Miles Robinson (D, USA)

Austin FC

• Julio Cascante (D, Costa Rica)

Charlotte FC

• Karol Swiderski (F, Poland)
• Jere Uronen (D, Finland)

Chicago Fire FC

• Miguel Navarro (D, Venezuela)
• Xherdan Shaqiri (M, Switzerland)

FC Cincinnati

• Santiago Arias (D, Colombia)
• Junior Moreno (M, Venezuela)

D.C. United

• Éric Davis (D, Panama)
• José Fajardo (F, Panama)
• Andy Najar (D, Honduras)

FC Dallas

• Alan Velasco (F, Argentina)

Houston Dynamo FC

• Adalberto Carrasquilla (M, Panama)
• Héctor Herrera (M, Mexico)
• Xavier Valdez (GK, Dominican Republic)

Inter Miami CF

• Edison Azcona (M, Dominican Republic)
• Drake Callender (GK, USA)
• Benjamin Cremaschi (M, USA)
• Diego Gómez (M, Paraguay)
• Sergii Kryvtsov (D, Ukraine)
• Josef Martínez (F, Venezuela)
• Lionel Messi (F, Argentina)
• David Ruíz (M, Honduras)
• Robert Taylor (M, Finland)

LAFC

• Stipe Biuk (F, Croatia U-21)
• Dénis Bouanga (F, Gabon)
• Denil Maldonado (D, Honduras)
• Cristian Olivera (F, Uruguay)

LA Galaxy

• Kelvin Leerdam (D, Suriname)
• Eriq Zavaleta (D, El Salvador)

Minnesota United FC

• Sang Bin Jeong (F, South Korea U-23)
• Teemu Pukki (F, Finland)
• Joseph Rosales (M, Honduras)

Nashville SC

• Aníbal Godoy (M, Panama)
• Randall Leal (M, Costa Rica)

New England Revolution

• Noel Buck (M, England U-19)
• Christian Makoun (D, Venezuela)

New York City FC

• Tayvon Gray (D, Jamaica)
• Mitja Ilenič (D, Slovenia U-21)

New York Red Bulls

• Cory Burke (F, Jamaica)
• Carlos Coronel (GK, Paraguay)

Orlando City SC

• Wilder Cartagena (M, Peru)
• Pedro Gallese (GK, Peru)
• Wilfredo Rivera (M, Puerto Rico)
• Facundo Torres (F, Uruguay)

Philadelphia Union

• Andre Blake (GK, Jamaica)
• Jesús Bueno (M, Venezuela)
• Dániel Gazdag (M, Hungary)
• Damion Lowe (D, Jamaica)
• José Martínez (M, Venezuela)
• Olivier Mbaizo (D, Cameroon)

Portland Timbers

• Bryan Acosta (M, Honduras)
• Miguel Araujo (D, Peru)
• Juan David Mosquera (D, Colombia U-23)

Real Salt Lake

• Kevon Lambert (M, Jamaica)
• Braian Ojeda (M, Paraguay)
• Rubio Rubin (F, Guatemala)
• Jefferson Savarino (F, Venezuela)

San Jose Earthquakes

• Cade Cowell (F, USA)
• Carlos Gruezo (M, Ecuador)
• Miguel Trauco (D, Peru)

Seattle Sounders FC

• Alex Roldan (D, El Salvador)
• Raúl Ruidíaz (F, Peru)
• Nouhou Tolo (D, Cameroon)

Sporting Kansas City

• Marinos Tzionis (F, Cyprus)

Toronto FC

• Tomás Romero (GK, El Salvador)

Vancouver Whitecaps FC

• Sergio Córdova (F, Venezuela)
• Andrés Cubas (M, Paraguay)