Daniel Ballard and George Saville were both in international action earlier this week as Northern Ireland played two friendly matches during March's break.
Saville played the 90 minutes as the Green and White Army were 3-1 winners in Luxembourg - Ballard was an unused substitute - whilst the duo swapped for the trip to Bulgaria, as Ballard was taken off after 82 minutes and Saville missed a 2-1 defeat.
The duo will hope to be in the Northern Ireland squad for their next fixtures, which see their Nations League campaign get underway with a quadruple-header in June.
Northern Ireland host Greece, before travelling to Cyprus and Kosovo, finishing with a game against Cyprus at Windsor Park.
Photo Credit: Northern Ireland