Postecoglou today confirmed has been called the greatest achievement in Australian football coaching history, winning the J-League with Yokohama F Marinos, finishing six points ahead of second-placed FC Tokyo.Β 

The victory, secured despite going down to 10 men in the second half, means Yokohama finished six points clear at the top of the league.

"We're champions!" the ex-Socceroos boss said after the victory.

"I'm very proud of the players, very proud of the staff.

"We've got fantastic supporters and I'm very happy for them."

The J-League crown takes his managerial trophy cabinet to nine including an NSL Premiership, two Championships and an Oceania Club championship with South Melbourne, an A-League Premiership and two Championships with Brisbane Roar and the illustrious Asian Cup trophy with the Socceroos in 2015.

Postecoglou's team played his trademark style of electric football this season, spearheaded by J-League joint golden boot winners Marcos Junior and Teruhito Nakagawa, who scored 15 goals a piece.

Before breaking his leg mid-season, Edigar Junio also contributed 11 goals to add to Postecoglou's title success, as well as his brawny defence keeping 12 clean sheets throughout the season.Β 

August was the month where Ange was biting his nails. Three straight league losses had Yokohama falling behind FC Tokyo and Kashima Antlers, with Kawasaki Frontale lurking close behind.

But Ange's stunning turn of form in September saw him begin an 11 game unbeaten run to reach the summit of the J-League, culminating in their league triumph today.Β 

Assistant coach Peter Cklamovski, who has been at Ange's side since his time in the Socceroos told Optus Sport ahead of the FC Tokyo showdown: "He's a living legend. He's the best there was, the best there is, and the best there ever will be."Β 

Postecoglou, in an interview with Fox Sports earlier in the week, put to bed rumours of a coaching opportunity elsewhere, declaring he is staying with the Japanese club, who will compete in the Asian Champions League next year.Β 

The 54-year-old also possesses the longest undefeated streak in any Australian domestic football code of 36 matches and successfully qualified the Socceroos for the 2018 World Cup in Russia.

Postecoglou was appointed Yokohama's head coach in December 2017, a month after his shock resignation from the Socceroos role despite the successful World Cup qualification campaign.

He took the club to 12th position in the J-League in his first season in charge and his transformation of the club into champions with a typically attacking and expansive style has sparked rumours he could soon find himself in one of Europe's top leagues.

He's also been touted as a possible candidate to coach the Japanese national team in the future.

Despite those rumours, Postecoglou distanced himself from any move away from Yokohama.

"I'm definitely going to be around next year for sure," he said.

"There's still stuff that I want to do here. I still think we can be better."