Wong Chi-chung (left) in action during the Nike Youth Basketball League at Southern Stadium, Wan Chai. The play-offs begin today with the top teams set to clash at the same venue. Eight boys' teams and four girls' teams have been competing in the 19-and-under category, and six in the boys' 16-and-under section. The finals are on Saturday and Sunday. There are five play-off matches today, with the opener scheduled to start at 4pm.