Update on Tyson Gay from his manager:
Tyson Gay underwent an MRI late Saturday afternoon at Slocum Center for
Orthopedics and Sports Medicine in Eugene. The MRI showed a mild strain
in the semitendinosus muscle. He is expected to engage in "active rest"
for up to 12-14 days, with light physical activity increasing through
that period, and then resume training. Tyson's only confirmed
pre-Olympic competition is the 100 meters at the Aviva London Grand Prix
on July 25, and that is still on the schedule.