Marcus Rashford's penalty took England past Romania 1-0 in their final Euros warm-up, as Jordan Henderson marked his return to action with a spot-kick miss.
UEFA has confirmed the expansion of squads from 23 to 26 players at this summer's delayed European Championship.
A decision on Euro 2020 host cities has been postponed until Friday, Sky Sports News has been told, with UEFA expected to confirm that later on Monday.
North Macedonia scored an 85th-minute winner to stun Germany 2-1 in their World Cup Qualifier on Wednesday, the last before Joachim Lowe's departure.
Free match highlights from Sunday's World Cup Qualifiers, including wins for England, France, Germany and Italy, plus a draw for Scotland.
Team news and stats ahead of Northern Ireland vs Romania in the UEFA Nations League, live on Sky Sports; kick-off 7.45pm.