Malaysia are, at 168, the highest ranked team in the first round of the Asian Qualifiers while Timor-Leste are 195.

Malaysia head coach Tan Cheng Hoe, however, has warned his players against complacency.

“I want my players to be 100 per cent focused and not underestimate our opponents’ ability. This is an important match because the team’s mission is to make it to the next qualifying round," said Tan.

Weiss, who was appointed by the Blue Wolves in 2017, is happy with his team’s preparations after a 10-day training camp in Phuket, Thailand but he will not take Brunei Darussalam lightly when they meet at the MFF Football Centre in the first leg despite the Southeast Asian team's head coach .

Macau will host the game at the Zhuhai Sports Center Stadium in neighbouring Zhuhai after maintenance works to the Estadio Campo Desportivo meant the Macanese were unable to play the match at their usual home stadium.

Despite that move, though, Macau will go into the game as marginal favourites given their higher status in the current FIFA Rankings – they are rated at 183rd in the world, 19 places above the Sri Lankans – and a stronger track record at this level.

The Southeast Asian nation were one of four teams to drop into the first round of the Asian Qualifiers this time around after earning three Round Two appearances in their four previous campaigns.

Both head coaches promised their players will deliver their best at the National Olympic Stadium in Phnom Penh.

At stake for the winners of the FIFA World Cup Qatar 2022 and AFC Asian Cup 2023 Preliminary Joint Qualification Round 1 is a place alongside 34 teams from Asia in the second round - where the likes of top-ranked Islamic Republic of Iran, Japan, Korea Republic, Australia and Saudi Arabia will all be in the fray.

The Asian sides will be chasing four confirmed berths to the 2022 FIFA World Cup Qatar, with the possibility of an additional seat being won via a Continental Play-off.

For the AFC Asian Cup China PR 2023, 23 berths are available and the-AFC.com takes a look at the Round One match-ups of the Asian Qualifiers.