Fiji Airways Flying Fijians Coach John McKee says Wales is renowned for their defensive work rate and strength in the breakdowns and Fiji must maintain strong momentum for a full 80 minutes to mount pressure and create scoring opportunities.
McKee says they have to win turnovers and attack the ball on the carries which are critical areas for them.
Fiji are fielding a strong and stable forward pack with some quality finishers in the backline.
McKee will be relying on these established combination to counter the Welsh upfront and has a huge boost with impact players Peceli Yato, Peni Ravai, Mesulame Dolokoto to pack some power off the bench.
Fiji and Wales have played three times in the Rugby World Cup.
Back in 2007, Fiji comes out with a historic win qualifying for the quarter-finals. Following that historical victory, in 2011 and 2015, Fiji went down in tight battles.
Fiji will play Wales at 9.45pm tomorrow.