FC Seoul have reached the AFC Champions League semi-finals for the first time in their history after seeing off Al Ahli 1-0 in the quarter-final second leg on Wednesday.
Dejan Damjanovic hit a last-minute winner for the South Korean champions at the Seoul World Cup Stadium, getting on the end of a Ha Dae-Sung delivery.
Following a 1-1 draw in the first leg in Saudi Arabia, Seoul advanced 2-1 on aggregate.
Elsewhere, Esteghal of Iran also progressed into the final four after defeating Thailand's Buriram United 2-1.
Andranik Teymourian scored in the second minute of stoppage time as Esteghal progressed 3-1 on aggregate after last month's 1-0 win in Tehran.
Meanwhile Kashiwa Reysol became the first Japanese club since 2009 to reach the semi-final stage after securing a 2-2 away draw to Al Shabab FC.
Following a 1-1 draw in Japan, Kashiwa looked to be heading out of the competition until a second-half Naoya Kondo header sent them through on away goals.
Finally, Marcello Lippi’s Guangzhou Evergrande continued its relentless march to final by completing a 6-1 aggregate victory over Qatari side Lekhwiya.
Leading 2-0 from the first leg, Lippi and his men travelled to Doha where three goals in the first-half put an end to the two-legged contest.
Lekhwiya final found the back of the net five minutes into the second-half, but Guangzhou’s Elkeson completed the 4-1 rout on the night in the 72nd minute.