World Cup quarter-finalists Scotland are up to 11th in the latest world rugby league rankings announced on Friday.
Tonga eliminated Italy from the World Cup with a 16-0 win, a result that sends Scotland through to the quarter-finals.
Italy will send Scotland tumbling out of the World Cup if they beat Tonga on Sunday.
A hat-trick of tries from Chris Taripo couldn't prevent the Cook Islands suffering a 22-16 defeat to Tonga in Leigh.
Tonga captain Brent Kite is hoping the United States can do his side a favour against Scotland on Thursday night.
Captain Brent Kite insists Tonga are looking forward to the chance of bouncing back from their defeat to Scotland.
Scotland held off a ferocious second-half comeback from Tonga to claim a thrilling 26-24 success at Derwent Park.
Steve McCormack believes Scotland's 26-24 victory over Tonga was one of the best wins in the nation's history.
More of the games that matter on Sky Sports
Challenge Cup & Grand Final Tickets
Listen to the latest Rugby League news
Watch the action with a Day or Week Pass
Win in our free to enter competitions section