Indians recalled LHP Giovanni Soto from Triple-A Columbus.
Soto has a 2.68 ERA, 1.19 WHIP and 51/29 K/BB ratio in 53 2/3 innings this season at Columbus. He'll operate in middle relief.
Indians purchased the contract of INF/OF Michael Martinez from Triple-A Columbus.
Martinez has hit .289/.344/.424 for Columbus this season. He'll operate in a utility role the rest of the way.
Tony Sipp has been sent for tests due to an oblique/back injury.
Losing Sipp would be a blow for the Astros, as he's been terrific this season with a 2.14 ERA and 50/13 K/BB ratio over 46 1/3 frames. More should be known on his status later this weekend.
Athletics recalled LHP Sean Nolin from Triple-A Nashville.
Nolin's season has been cut short due to a groin injury, but he put up a 2.66 ERA over 47 1/3 innings for Nashville when he was health. He will join the A's rotation next week.
Reds sent RHP Dylan Axelrod outright to Triple-A Louisville.
It's the second time he's been outrighted this season, so Axelrod can declare free agency if he wants. He held a 7.30 ERA over six relief appearances with the big club this season.