UNSEEDED Bill Young Tsz-kwan staged a fine recovery to reach the quarter-finals of the boys' singles in the Asian Junior Championships at the Hong Kong Sports Institute yesterday. The 17-year-old Diocesan Boys' School pupil came back from one set down to beat Adelo Abadia of the Philippines 5-7, 6-4, 6-3 and remain the territory's only hope of success in the event. There were three other upsets in the boys' singles competition with second seed Jan Stoces, third seed Vladimir Platenik and seventh seed Mark Nielsen all falling by the wayside. Czech Stoces went down 6-3, 6-2 to India's Anirban Baruah while Slovakia's Platenik was defeated 7-6, 6-0 by South Korea's Lee Jeong-min. New Zealander Teo Susnjak toppled compatriot Nielsen 6-2, 2-6, 6-3 in the other upset of the day. Top-seeded German Rainer Schuttler advanced with a relatively easy 6-1, 6-2 triumph over Poland's Artur Rusiecki.