Both sides saw their progress cut at the Round of 16 last year; Al Wahda were beaten by Al Nassr 4-3 on aggregate, while Al Ahli succumbed to rivals Al Hilal with the same result.

The reigning champions are in action in Dubai, while one debutant will make their AFC Champions League group stage bow on the same day as things kick-off in full speed in the West Zone.

The three-time Continental club winners, who defeated Japan’s Urawa Red Diamonds in last season’s final, face group stage debutants Shahr Khodro FC of the Islamic Republic of Iran at the Al Wasl Stadium in the UAE at 6.40pm local time.

Also, in Group B, Pakhtakor from Uzbekistan take on Shabab Al Ahli Dubai at the Pakhtakor Stadium in Tashkent.

Ahead of the 2020 AFC Champions League group stage kicking-off on Monday, the-AFC.com looks at some of the biggest names signed over the past few months who could make the difference for their new clubs in the continental competition.

Al Hilal lifted the trophy in 2019 after twice having to settle for runners-up finishes as they saw off some tough challengers from a decade that had seen nine different AFC Champions League winners.

The results can be viewed HERE but let's take a look at the nominees once again ahead of a new decade of the AFC Champions League kicking off on Monday.

The Continent's top clubs will bid for supremacy and the-AFC.com tells you all you need to know through the 2020 AFC Champions League official guide.

Click HERE to view the 2020 AFC Champions League Media Guide.

Al Hilal's Baftembi Gomis earned himself the top scorer award in 2019 with 11 goals. But with several exciting attackers involved in this year's competition, the goals race is set to be even more heated.

Gomis returns but alongside him below are a selection of leading candidates who could take the mantle from the Frenchman in 2020.