Yoshimura Suzuki Factory Racing's James Stewart underwent neurocognitive and concussion management testing Friday afternoon and was cleared by Asterisk Mobile Medical Center personnel to race in tomorrow's San Diego Supercross event at Petco Park, round two of the Monster Energy AMA/FIM Supercross Championship. "James said he started feeling much better in the last couple of days since his Anaheim fall," said Yoshimura Suzuki team manager Mike Webb.