The following day he was placed on the 15 - day disabled list , and was sent back to Boston for testing .
On August 27 , 2006 , Lester was scratched from his scheduled start against the Oakland Athletics due to a sore back .
The following day Lester was placed on the 15 - day disabled list , and was sent back to Boston for testing .
On August 27 , 2006 , Lester was scratched from his scheduled start against the Oakland Athletics due to a sore back .