Saints' midfielder Jamie Lennon has been included in Stephen Kenny's Republic of Ireland Under-21 22-man squad for the 2019 Maurice Revello Toulon Tournament.
The tournament, which begins on Monday, June 3, will see Ireland face Bahrain, China and Mexico in Group C in Provence, France. It will be the first time since 2002 that Ireland have competed in the tournament.
The squad includes seven SSE Airtricity League players, including three from UCD AFC.
"We're extremely excited about going to the Toulon tournament and this is a fantastic opportunity for the players to express themselves in one of the most prestigious under-age international tournaments," said U-21 manager Stephen Kenny.
"We've never qualified for the European Championships at U-21 level so this tournament represents the highest level we'd have played at and we're set to play Mexico, China and Bahrain's Olympic squads, as they prepare to qualify for Tokyo 2020.
"It's also crucially important that we continue to build momentum throughout the year after the win over Luxembourg and looking ahead to the qualifiers in October and November.