HONG Kong Football Club are back. The defending Hong Kong rugby champions, out of sorts for most of the early season, sounded their return to form with a 18-15 victory over First Division leaders Kowloon at Mongkok Stadium yesterday. After two league defeats to Police and Valley, Club overcame a huge mental barrier to knock off the form team of the First Division on their home ground. Club coach and prop Morgan Chubb, who said yesterday that he has come out of retirement, was however, not looking too far ahead. ''It is a huge confidence-booster for us,'' said Chubb. ''The players were nervous before the match, but very focused. ''Everyone was quiet because they knew they had a tough job to do. But there is still a long way to go. Valley, I think are still the team to beat.'' Valley showed why they are one of the title favourites with a 27-0 victory over cock-a-hoop Police at Police Boundary Street. Jeremy Smith's try gave them a 5-0 half-time lead and they ran riot in the second half, with Smith, Stuart Krohn, Ashley Billington and Dave Reid touching down. Valley fly-half Pieter Schats had to go off in the second half with a hamstring injury and may be doubtful for national trials tomorrow. Kowloon, despite their first defeat in the league, maintain their lead with 17 points. They earned one bonus point for keeping their losing deficit against Club to within seven points. Club and Valley are joint second with 13 points each, although Valley have a game in hand. Police are fourth on 12 points.