Dallas picked up their 61st cap for their country in Friday night’s friendly against hosts Luxembourg and played 79 minutes before being knocked out as the Green and White Army recorded a 3-1 victory.
Dallas has already played 38 games for club and country this season and fell victim to a late tackle from Joao Moutinho in last weekend’s 3-2 win over Wolves for Leeds.
The two-time White Player of the Year then headed into his final international bout with Northern Ireland whose second and final match of the current international break falls less than four days before United’s return to the Premier League.
Leeds will resume their league campaign and crucial clash against Southampton at Elland Road next Saturday afternoon.
Dallas is one of two Leeds players who could be on senior international duty on Tuesday night as White winger Dan James also makes the Wales squad ahead of their friendly against visitors Czech Republic.
When asked if he had any other squad news in terms of players lost or returning apart from the return of Paddy McNair and Bailey Peacock-Farrell joining the squad, the Northern Ireland boss Nord, Baraclough, said: “We’re going to freshen things up a bit and let’s see what we’ve had in terms of those games in three or four days apart.
“It’s going to be a good test for June, the four Nations League games, so it’s a good test for that.”