Motherwell had six players involved in international matches on Thursday.
Sixty-three months after making his international debut, Liam Donnelly earned his second cap for Northern Ireland as they beat Luxembourg at Windsor Park.
The 23-year-old midfielder was a 67th minute substitute, replacing Corry Evans, with the hosts already ahead after a bizarre first-half own goal from Luxembourg defender Kevin Malget. Goalkeeper Trevor Carson was named amongst the substitutes.
Allan Campbell started for Scotland as they got their UEFA Under 21 qualification campaign off to a winning start with victory over San Marino in Paisley.
Campbell, Scotland’s most experienced campaigner with 16 caps, played his part, helping to create the second goal for Hibs loanee Glenn Middleton. Scot Gemmill’s side had earlier taken the lead courtesy of Alessandro Tossi’s own goal.
Earlier in the afternoon, Jamie Semple came off the bench for the last half hour for Scotland U19s as they drew 1-1 with Japan in Spain.
The midfielder played a crucial part in Scotland’s equaliser, threading a tempting pass through for Kyle Joseph to level things up, with the teams due to meet again on Monday.