Mark Travers started for the Republic of Ireland and won his third senior cap in Wednesday's World Cup qualifier against Serbia.
Making his first appearance in a competitive match for his country, 'keeper Travers was part of a entertaining encounter with the hosts eventually running out 3-2 winners in Belgrade.
Cherries loanee Shane Long won his 85th cap as he replaced Aaron Connelly midway through the second half in the Serbian capital, grabbing an assist for James Collins' late goal and setting up a grandstand finale.
Ireland next host Luxembourg on Saturday, before playing Qatar in a friendly in Hungary next week.
Away in Belgium, Chris Mepham started for Wales in their first qualifier as they took on the side that finished third in the last World Cup in 2018.
The defender began the slick passing move which ended with former Cherries player Harry Wilson giving the side a sensational lead in Leuven.
However, Kevin De Bruyne led a Belgium fightback, equalising before Thorgan Hazard put the hosts ahead before half time.
In the second period Mepham upended Dries Mertens in the box with Romelu Lukaku scoring from the spot to confirm the win.
Wales return home for a friendly with Mexico this weekend, remaining in Cardiff for their second qualifier against the Czech Republic next week.