WHAT a wonderful opportunity for Hongkong sport to kick off a new beginning at the new $850 million national stadium when the official opening takes place next March. Plans are under way for a weekend of celebration, following the handing over of the stadium keys from the Royal Hongkong Jockey Club, who paid for the renovation work, to the Urban Council, who will be the landlords. Just what will happen after that will be decided by the Jockey Club, the Urban Council and Wembley Stadium Ltd, who will manage the venue. The three parties are to meet for the first time this week to discuss their ideas for the festival programme, which, according to an Urban Council spokesman, will be in the style of a mini Olympic Games ceremony. Like a singer introducing his next song, I hope it goes something like this . . . The Jockey Club built the stadium for the people of Hongkong and want as many as possible to have a look round as soon as it is completed. This suggests an open day would be ideal for Saturday, March 12, after the official opening on the Friday. The public would be able to walk around the stadium, look at the facilities and watch the entertainment either from the stands or down on the pitch. In an informal promotion day for the stadium in general and for Hongkong sport in particular, it would make sense to turn the pitch into a huge exhibition arena, inviting local sports associations to put on demonstrations in one of a series of cordoned-off sections. This would make the public aware of the sports available in Hongkong - and give them the chance to join in, or even to join up. An open, informal sporting gala, with stalls and sideshows for all the family, would be an ideal way to introduce the stadium to the people. The serious stuff would come the next day - and I sincerely hope the organisers can attract a top-class national football team to Hongkong for an exhibition match. The proposed ''mini Olympic-style'' ceremony could involve dance, music and culture in the build-up to the big match. By then the line-up for the 1994 World Cup finals in the United States will be known and all qualifying countries will be looking for build-up matches - and some of them, notably from South America, will be looking for cash. How about a Hongkong League XI v Brazil? Or, with the Wembley connections, why not a Hongkong League XI v England? Ambitious? Well why not? In March 1994, Hongkong will have a stadium to be proud of, not one to be ashamed of, so why not set the sights high from the start in bringing top-level sport to the territory. Kop this for a cheeky invite FOR all you Liverpool fans out there preparing to live through your worst nightmare - Manchester United winning the English championship - here's a crumb of comfort, courtesy of a Discovery Bay reader whose father is at the centre of this story. United, without a league title since 1967, should end that 26-year barren spell either today or tomorrow. If their nearest rivals, Aston Villa, fail to beat Oldham Athletic at Villa Park today, United will be home and dry. But the celebration party is expected to be held at Old Trafford tomorrow, when United entertain Blackburn Rovers. Enter lifelong Liverpool fan Pat Tyrrell, who, as chairman of Cheshire County Council, near Manchester, has been invited by United's sponsors, Sharp, to watch tomorrow's game from the Old Trafford directors' box. Somewhat surprisingly, 62-year-old Pat has agreed to join his team's greatest rivals in the long-awaited party. Explaining his decision, Pat said: ''I've only agreed to go because nobody at Old Trafford will know how to celebrate winning a championship. ''They'll need somebody with plenty of experience - and who better than a Liverpudlian to help them?'' added Pat, who pointed out that Liverpool have been crowned champions a staggering 11 times since United last lifted the league in 1967. Now Liverpool fans, does that feel any better? Snap, crackle goes food of champions ''A CROCODILE sandwich, please - and make it snappy,'' goes the joke. But if you believe Hongkong swimming coach Bill Sweetenham, the reason for his swimmers' success last week in the Arafura Games in Darwin, Australia, was a pre-Games meal of crocodile meat. Sweetenham, not unknown to spin a yarn or two, said the Aussie delicacy had helped to produce the snappy times in the pool - and a haul of gold medals. Crocodile is said to taste like chicken, though slightly sweeter and tougher, but, until now, has not been known as a performance-enhancing reptile. ''I think the Australians would have caught on a long time ago,'' said a prominent Hongkong-based Aussie sports administrator. ''It's more like Bill's been winding a few people up.'' But, if the swimmers return to Hongkong on Tuesday with a few new pets, then prepare for an additional item on the menu at the Hongkong Sports Institute. Sports Person of the Week: Brian Clough, who announced his retirement as manager of Nottingham Forest at the end of the season. He has brought colour and character to the English game and produced attractive footballing sides during times when pace and power are the key qualities. It is the end of an era without Cloughie. Sports Quote of the Week: ''He generally saves his best for us but he has got to do something to get picked. He can't always say he performed brilliantly in 1981 - it's 1993 now'' - Australia captain Allan Border on the prospects of an Ashes call-up for his old England rival, Ian Botham.