Athletes from both Ireland and Northern Ireland are competing in a united team in the Czech capital - a first at an IMMAF event.

And it was junior men's featherweight Ryan Keogh who went down in history as the All-Ireland squad's first victor, beating Greek opponent Nikolaos Katsoulas via a technical knockout (TKO) inside the first round.

Senior flyweight Gary Rooney, featherweights Lewis Byrne and Damien McKenna, bantamweight Taylor Quinn and lightweight Solomon Simon also won their opening bouts in Irish colours.

The host nation found the going tough, however, with 10 of the 12 Czech athletes in action suffering defeat. 

Tajikistan went two-for-two, with featherweight Manuchehr Rioev beating Ireland's Patrick Moran via TKO and flyweight Abubakr Baimuradov forcing a submission out of Swede Rickard Wickelgren.

The event continues tomorrow, with women's bouts among those on the schedule.

It is the IMMAF's first-ever World Cup leg.