However, appreciation is given to both sides, one of them is from former Indonesian mixed doubles athlete, Liliyana Natsir, who is also Tontowi's team mate. Specifically, Butet, Liliyana's nickname, said that if Kevin/Greysia have eased her and Tontowi's way at this year's Indonesia Open.

Butet addressed as Kevin/Greysia's stunning the world's best mixed doubles pair who also a gold medalist at Olympic, Zhang Nan/Zhao Yun Lei (China) in the first round is astonishing.

"Kevin/Greysia have assisted me and Owi (Tontowi) to defeat our opponents at the tournament although at the end of the day Kevin/Greysia lost from in the hands of Korean players, I am grateful for that," she said.

Even so, Liliyana did not dismiss that although Zhang Nan / Zhao Yun Lei have eliminated, there are still more powerful opponents. "There are many tough opponents such as Xu Chen / Ma Jin (China) and Chris Adcock / Gabrielle Adcock (UK) anyway, but with Zhang / Zhao defeat, it greatly reduced the pressure on us," she said.

Liliyana Natsir / Tontowi Ahmad them selves have confirmed a ticket to quarter final after beating South Korean pair Shin Baek Choel / Jang Ye Narea in a tight battle through three game match, 21-11, 22-24, and 21-13.

Liliyana doesn't know the continuation of the senior-junior pair. But according to her, with the extraordinary talent, Kevin can still continue to switch partners in order to find the most suitable one.

"He is young; he has a long way to go. As for me at this age, I wouldn't try to experiment, it doesn't make sense, it's time for me to focus."