Batista felt pain in his upper groin when he threw the ball in the first inning against Oakland before taking himself out of the game after one batter in the second inning.
After a resistance exercise in the pool before Saturday's game, the right-hander was pleased with his recovery and hopes to be ready to make his next start Thursday in Cleveland.
"[I'm] better than yesterday," Batista said with the injured area tightly wrapped. "So far, the biggest issue is out of the way. I'm not too sore, so that's good news."
Batista knew it was time to come out of the game when he felt pain on each pitch he threw in the second inning.
"'This is no good,'" Batista said he was thinking. "I told them I better get out before I really get hurt.
"Now that I'm getting older, I've learned to understand my body. I've learned the difference between soreness and pain. If I would've pulled my groin, I would've been out for the season."
The news is also positive on another Seattle starter, as Carlos Silva is expected to make his next start after leaving Wednesday with tightness in his thigh.
"The report I'm getting on Batista is real good, so that's real positive and Silva feels good," manager John McLaren said. "So, we're good in both those departments."
Batista took the loss Friday to drop his record to 2-3 with a 5.26 ERA in six appearances, five starts, this season.
Chris Hester is a contributor to MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.