br pThis California teen, who survived a stroke, multiple bouts of cancer, and a brain tumor that left him blind, beat his own best time in a self-defense training relay.ppUploader and trainer @milliondollarbeast posted this caption along with the video: “For those of you who don’t know.. This champion is now 18yr. Old, I used to train him from 6-8yr. At 8 he was diagnosed with a brain tumor which required multiple huge surgeries. In the process he suffered a massive stroke which caused him to lose most of his use of the right side of his body.