Sifu Greg Yau and students of the Santa Rosa chapter lead by Sifu Bert. (from left Visiting Student,Professor Perry, Sifu Greg Yau, Dan Koep, Sifu Kip Shaw, and Sifu Go Phetphommasouk. Sifu Greg Yau has been teaching the Santa Rosa students the “quantum physics of the martial arts”. When Sifu Greg was a young child growing up, he spent many hours watching Sifu Yip Man train his uncle Sifu Chris Chan and Sifu Bruce Lee. From watching the training, he has developed a program that allows the Wing Chun practitioner to learn faster and more efficiently. Greg Yau, nephew of Chris Chan, is known to be the strongest, most proficient, and most powerful student Chris has.