Reubin Walters will be the first Trinidad and Tobago athlete on show at the 2012 World Junior Track and Field Championships, in Barcelona, Spain.
Walters will run in heat one in the opening round of the men's 110 metres hurdles, on day one of the global under-20 meet, today.
Ashron Sobers and Jonathan Holder will compete in the men's 100m preliminaries. Sobers has been drawn in heat four, while Holder will run in the sixth heat.
Machel Cedenio and Asa Guevara will represent the Red, White and Black in the men's 400m. Cedenio, who clocked a personal best 46.02 seconds in finishing fifth in the National Open Track and Field Championship final, last month, runs in heat two, while Guevara faces the starter in heat seven.
And in the women's 100m preliminaries, Aaliyah Telesford (heat two) and Lisa Wickham (heat seven) will fly the T&T flag.
Keshorn Walcott goes into action on Thursday, in the qualifying round of the men's javelin. The final will be contested on Friday.
Walcott is at the top of the 2012 world junior list with his 82.83 metres personal best, and is tipped for gold in Barcelona. The World Juniors field also includes Argentina's Braian Toledo, whose personal record (PR) is 79.73m, American Sean Keller, Chinese Taipei's Chao-Tsun Cheng, Japan's Yoshihiro Nakajima, Slovenia's Jaka Muhar and Australian Luke Cann.