Moustakas was held out of Sunday's game and initial thoughts were that he could have done something serious to his knee. His status was originally in question for Tuesday's game, but he made the start at third base and batted fifth.
"I was pretty optimistic he'd be back Tuesday because he's such a tough kid," manager Ned Yost said. "I was really nervous when he did it. I thought there could be some tearing of his meniscus in there. That made me nervous.
"Our training staff does a great job of around-the-clock work on players. They worked on him yesterday and the day before, all day and into the night that he did it. I figured the chances of him being back on Tuesday were very good."