DIGICEL Fiji Sevens skipper Setefano Cakau says building on the mental toughness will be the team's biggest challenge in the days leading up to the Las Vegas 7s tournament which starts this Friday.
The national side hit the rock bottom after getting relegated to the Bowl competition for the first time in the history of the International Rugby Board (IRB) Sevens World Series at the Wellington 7s over the weekend.
The Timoci Wainiqolo-coached side was further embarrassed after it lost to Canada 19-28 in the Bowl final at the Westpac Stadium in Wellington, New Zealand on Saturday.
Cakau said the challenge was to regroup and move on from the disappointing performance in Wellington.
"We will regroup and talk about our mistakes in Wellington and the ways we can improve on that to perform better in Las Vegas," the 34-year-old said.
"It's about getting the mind-set of the players' right and focus on what is in front of us.
"Mental toughness will be very important to us. We can't do anything about Wellington 7s now but we just need to set our focus right for the next tournament."
Cakau, who puts the Wellington leg as the worst in his 7s career, said the team committed "a lot of mistakes" during the tournament.
He said they failed to play as a team on day one and was much better on the second day of the tournament.
"There are lot of new boys in the team and I think this has been a good test for them," Cakau said.
"I thank the boys for continuing to fight despite the early losses."
Cakau also admitted he did not perform well because of some "niggling problems" and would be back to his best in Las Vegas.
Fiji is drawn with Wellington 7s champions England, Scotland and Portugal in Pool A.
The national side has dropped to the fourth place with France on 51 points while New Zealand leads the 2012/13 IRB 7s series on 77 points followed by Kenya on 56 and Samoa on 54.
The team left Wellington for Las Vegas yesterday.