Heward-Belle sustained an injury in Sunday’s Y-League encounter against Central Coast Mariners in Kogarah and following assessment over the past 48 hours it has been determined that he won’t be fit to participate in the tournament.

Australia’s U23 men’s national team for next month’s tournament will feature 14 players representing 8 A-League clubs, with nine members of Graham Arnold’s squad set to arrive in Southeast Asia from overseas-based teams.

The quartet will go into the campaign on the back of a strong 2019 and, in what is likely to be a closely contested group, their countries' hopes of progressing to the knockout rounds of the AFC U23 Championship Thailand 2020 could rest upon their form in front of goal in Southeast Asia.

A group that involves four of Asia's biggest sides in Qatar, Japan, Saudi Arabia and Syria is set up to be one of the most intriguing, with some of the Continent's best next generation on display.

We have selected a player from each side who could be the stand-out.

Songkhla is set to feature a feast of football with five of Group C's six fixtures taking place in southern Thailand. Taking to the field at Tinsulanon Stadium will be defending champions Uzbekistan, perennial contenders Korea Republic, China PR and Islamic Republic of Iran.

We have picked out four players capable of shining in Songkhla.

While Vietnam will start the campaign as favourites, there's plenty to suggest talented Jordan, United Arab Emirates and DPR Korea sides can challenge the Southeast Asians in what looks an intriguing group.

As the four sides chase two knockout round qualification spots, here's the-AFC.com's pick of the players to look out for.

The Korea Football Association announced on Monday that Valencia CF midfielder Lee (pictured above) and SV Darmstadt 98 midfielder Paik Seung-ho are not available for the tournament which also serves as the Qualifiers for the 2020 Tokyo Olympics.