BH is DL bound.
SF Chronicle 6/15:
Designated hitter Frank Thomas came out of Oakland's 7-2 victory over the Mariners in the third inning with a reoccurrence of the quadriceps strain that kept him out of four games last month and one game this month. Thomas, who has 16 homers (second on the A's to Nick Swisher's 17), said after the game he believes he will go on the disabled list as a result, especially because the A's will be playing at National League parks for nine games, beginning Monday at Colorado.
"If you hit the baseball and you can't run, that's a problem,'' said Thomas, who described the strain, which is near his right hip flexor, as very painful.