In a curtain-raiser to the South Africa-New Zealand Tri-Nations match in Durban, Wales Under-19's lost 20-19 to a South African Schools Academy team.
"We outscored them by three tries to two and it was a game we should have won," said coach Dai Rees. "But we started poorly and gave away too much possession. Given a few more minutes we would have won."
The home side led 13-0 before fly half Matthew Jones dropped a goal and wing Richard Fussell scored a try.
However, it was 21-8 before wing Stephen Ireland and centre Gavin Evans crossed for tries and centre Lee Thomas added one conversion.
A late run by Fussell was halted in the corner flag and Wales just lost out.
The final two matches are against Northern Transvaal on Wednesday and then the SA Schools at Johannesburg on Saturday, the latter being a curtain-raiser to the South Africa-Australia Tri-Nations match.
Carmarthen Quins are holding an exhibition to commemorate club players who fought in World War I. All welcome to the clubhouse on Friday afternoon to learn more about local history, or share any family anecdotes or artifacts.
Defence coach Shaun Edwards believes Saturday's clash against England - the 'form team in world rugby' - poses a huge challenge for his side but he is confident, with Wales beginning to show the defensive qualities displayed in the last two World Cups,