However when asked if the gold medal became more important because of the negative publicity surrounding the Chinese team following the expulsion of women's double duo Yu Tang and Wang Xiaoli as part of the match fixing scandal earlier in the tournament, the new champions were more guarded.
"Everyone has trained very hard to put on their best performance," said Zhao.
"I am not familiar with what happened in the past few days," added Zhang.
Earlier China crept closer to at least two other gold medals. Wang Yihuan, the top-seeded world number one beat Saina Nehwal, the Commonwealth champion from India, to reach the final of the women's singles, where she plays her compatriot Li Xuerui, the All-England Open champion.
China also has two semi-finalists in the men's singles and the top seeds in the men's doubles, with Zhao Yunlei in with a chance of a second gold medal, having also reached the final of the women's doubles with Tian Qing.