Teenager Martin Sayer is leading Hong Kong's bid to gain promotion to group two of the Davis Cup international tennis competition at Victoria Park this week. Hong Kong, hosting the group three tie for the first time, are pooled with Tajikistan, Malaysia and Saudi Arabia in group A. In group B are Qatar, Bahrain, Vietnam and Sri Lanka. The top two teams at the end of the competition on Sunday advance to group two next year. Local hopes are pinned on Yu Hiu-tung, Wayne Wong, Brian Hung and Sayer, a former student at King George V School in Kowloon. He was on top of his game when he made his Davis Cup debut against Saudi Arabia on Wednesday. The talented junior, who turned 18 last month, defeated Fahad Al Saad 6-2, 6-2 to set the tone for the match, which Hong Kong won 3-0. Yu easily won another singles contest, and Sayer teamed up with Brian Hung Lap-hei to win in doubles and complete the victory. All four players will have to play a part as the format of the competition is quite different from ties in group two and above. With eight countries vying for two berths, the teams have been split into groups. The first portion of the competition is a round-robin to decide the top two and the bottom two. The top two in group A will play the top two teams in group B on Saturday and Sunday to decide the two promoted countries. The result of the tie in the preliminary round between the top two teams in each group will also be carried over to the final round. All matches will be on a best-of-three format - two singles and a doubles. 'What it means is that every match, every set and every game will be important. If we win the first two singles, we will still have to play the doubles and try to win it as this could become important later if there is a tie between three teams at the end of preliminary round,' said Derek Ling, Hong Kong's non-playing captain.