The A’s have placed 39-year old righty starting pitcher Bartolo Colon on the 15-day disabled list, retroactive to June 18th due to a strained right oblique. Colon has pitched in 15 games (all starts) for the A’s so far this year and he is 6-7 with a 4.22 ERA and a 1.31 WHIP. 25-year old righty Tyson Ross has been called up to replace Colon in the starting rotation. Ross has pitched in 10 games (all starts) for the A’s so far this year and he is 2-6 with a 6.11 ERA and a 1.74 WHIP. The A’s hope that Ross steps up this time.