The March international window for FIFA World Cup Qualifying is here – and it's a big one. Just as in previous windows, many MLS players will have a pivotal role in pushing their national teams to the 2022 FIFA World Cup in Qatar.

Although 15 teams have already booked their place, nearly the rest of the 32-team field will seal their spot in this fall's tournament during the March window.

Players from MLS are expected to represent numerous teams in Concacaf and Conmebol, as well as in CAF, Oceania and UEFA.

Below is a running list of players called in for these decisive March qualifiers or for friendlies with their national teams. It will be updated as more squads are announced.

Colorado Rapids logo
Colorado Rapids
FC Dallas logo
FC Dallas
D.C. United logo
D.C. United
Inter Miami CF logo
Inter Miami CF
Minnesota United FC logo
Minnesota United FC
Nashville SC logo
Nashville SC
New England Revolution logo
New England Revolution
New York City FC logo
New York City FC
New York Red Bulls logo
New York Red Bulls
Orlando City SC logo
Orlando City SC
Philadelphia Union logo
Philadelphia Union
Portland Timbers logo
Portland Timbers
Seattle Sounders FC logo
Seattle Sounders FC
Sporting Kansas City logo
Sporting Kansas City
Toronto FC logo
Toronto FC