With two matches remaining, the J.League outfit have a five-point advantage over their Thai opponents in Group G and only need a draw at the Supachalasai Stadium to confirm their place in the knockout stage.

Such is Nishino's determination to see his team advance that he intends to field a full-strength side at the Supachalasai Stadium.

"We will field our three national players - Yasuhito Endo, Ryuji Bando and Akira Kaji - as well as our Brazilian strikers (Bare and Lucas)," he said.

After seeing Gamba require a stoppage-time equaliser to salvage a 1-1 draw with Chonburi in their opening match in Osaka, Nishino wants to ensure that his players do not take their Thai opponents too lightly.

"We want to confirm our place in the knockout stage as soon as possible. I don't want it to come down to our final group match," he added.

"We have a five point lead but we must not underestimate them because Chonburi played very well in Osaka and we needed to battle just to get a draw."

Chonburi are outsiders to become the first Thai side since BEC Tero Sasana in 2003 to reach the knockout stage but coach Jadet Meelarp has not given up just yet.

"We will play our best players including Brazilian striker Ney Fabiano, who is playing his last match in Thailand before going to Australia," said Jadet.

"We intend to attack from the start and, hopefully, we can beat Gamba and qualify for the next stage of the AFC Champions League.

"We hope that Thai football fans will come out to cheer us on as it would be a proud moment for us to beat a strong side like Gamba."

A loss for Gamba could also open the door for Korean FA Cup holders Chunnam Dragons if they defeat Melbourne Victory in the other Group G match at the Gwangyang Stadium.

Chunnam trail six points behind Gamba and although their hopes of progressing to the last eight are remote, coach Park Hang-seo insists his players will give their all against the Australian side.

"As long as there is still a possibility for us to progress to the last eight, we will not give up," Park said.

"We also have a responsibility to our fans to give a good performance and do all we can to win the game.

"We know that it is going to be tough against Melbourne but we are looking forward to it."

Melbourne have only pride to play for as their inaugural Champions League campaign came to a premature end after a 2-0 defeat to Gamba Osaka a fortnight ago in Japan.

However, Melbourne coach Ernie Merrick expects no let-up in effort by his players on Wednesday.

"The boys are highly motivated. Despite the long A-League season and then preparing again and staying fit for the AFC Champions League, training is very upbeat and enthusiastic," he said.

"We'll be playing to win the game and we want to finish on a high note."