Losing the 2019 Rugby World Cup could "be the end" of Japan as an international rugby country, according to Brave Blossoms head coach Eddie Jones.

Japan has until the end of September to assure World Rugby over the financial security of hosting the 2019 tournament.

Doubts were raised after Tokyo's refurbished National Stadium - due to host the opening game, final and possibly both semifinals - was scrapped as a venue, with Japanese Prime Minister Shinzu Abe halting the project due to spiralling costs.

"From what I understand over the past week, the Prime Minister has guaranteed the money for the World Cup," Jones said after his side's final warm-up victory over Georgia. "If that happens, nine-tenths of the problems have probably gone. Hopefully it will stay there because it's a fantastic opportunity for Japan to build its rugby game.

"To have a World Cup in an Asian country is wonderful for the sport. If they did lose it, it would be disastrous. It could be the end of Japan as an international rugby country."

Jones, who has coached Japan since 2012, will not get the chance to lead them into a home World Cup. Two weeks ago, he announced he will leave his post after the 2015 tournament to take over South African Super Rugby outfit Stormers.

However, his focus remains on the job in hand. Japan have not won a World Cup match since 1991 - something which must change in England if they are to realise Jones' high ambitions.

"Our aims are fairly lofty," Jones said. "You only come to a World Cup wanting to make the quarters or to win it - we're not in a position to win a World Cup.

"If you look at what we've done over the last four years, we've edged ourselves into the top 10 once, we've beaten Italy and Wales. We want to go to the World Cup and show that Japan is a serious rugby country, which it hasn't done at previous World Cups.

"The mindset has changed. When I first took over, all the players worried about was being good in Japan. Now they want to win at international standard.

"We've gone through all of our warm-up games and we've only lost one prop [to injury]. All of the players we wanted to take to the World Cup are here, so we've got no excuses."

Japan's Amanaki Lelei Mafi celebrates scoring a late try against Georgia© Scott Heavy

While a tough pool awaits them - Japan open their campaign against South Africa in Brighton on September 19, before going on to face Scotland, Samoa and the USA - Jones' side go into the World Cup full of confidence.

Amanaki Mafu's last-gasp try earned them victory over Georgia in Gloucester, making it three warm-up wins from three following an impressive double over Uruguay.

"Psychologically, that's important," Jones said. "You always get a bit of confidence from winning. We've had three good wins on the trot going into the World Cup and we're looking to peak on September 19.

"If we hadn't have scored that try [against Georgia], everyone in the dressing room would have their heads down and be kicking anything they could. Instead, everyone's happy and we go into a World Cup with smiles on our faces."

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