The two sides went into Sunday's game with plenty of knowledge on each other, with the Round of 16 clash the seventh time they have faced off since 2018 in a rivalry that has brought about numerous talking points.

And just as in the semi-final two years ago it was the Tehran giants who would advance after, having seen their opponents dominate large spells of the game, they kept it tight at one end and found a way past at the other.

Asian refereeing set new benchmarks earlier this year when the AFC U23 Championship Thailand 2020 became the first AFC competition to successfully implement VAR across all 32 matches.

Now Asia’s premier club tournament will become the third AFC competition to embrace the latest in technology from the Quarter-finals after it was first introduced from the same stage of the AFC Asian Cup UAE 2019.

As the 2020 AFC Champions League gets set to return on Wednesday with a pair of last-eight fixtures, the-AFC.com looks back at the numbers that caught the eye as the knockout rounds got underway.

The quartet of Al Ahli Saudi FC, Al Nassr, Pakhtakor and Persepolis FC move on to Wednesday's quarter-finals while the Continental dream is over for another year for Al Sadd SC, Al Taawoun, Esteghlal FC and Shabab Al Ahli Dubai. Here's how those involved reflected on the weekend's action.

As has been the case throughout the tournament, there was high drama in the Round of 16 as the eight teams gave it their all in a bid to advance to the quarter-finals, with Monday's draw in Doha pitting Al Nassr against Al Ahli Saudi FC in an all-Saudi Arabia last eight tie with Islamic Republic of Iran's Persepolis to face Uzbekistan's Pakhtakor on Wednesday.

Both quarter-finals will be played at the Jassim bin Hamad Stadium on Wednesday, with Saturday's semi-final also to be played at the same venue. The two quarter-finals and semi-final will be one-legged affairs.

Doha: Persepolis FC's Isa Al Kasir has been voted by the fans as the 2020 AFC Champions League Round of 16 (WEST) Toyota Player of the Week.