But Cuthbert broke out of his funk in a big way on Sunday, belting two home runs and driving in four runs in a 5-4 win over the White Sox.
"He needed it," manager Ned Yost said. "He's been struggling."
Cuthbert got the Royals on the board with his first home run in the fourth inning off left-hander Hector Santiago. With two out in the fifth, he then hit a three-run homer to left-center off right-hander Chris Volstad, giving Kansas City a 4-2 lead.
The four RBIs tied a career high for Cuthbert, having done it previously on June 11, 2016, also against the White Sox.
"The first one, I didn't know was out," Cuthbert said. "The second one, I knew. I saw some video and knew [Volstad] threw some sinkers. I was ready for it.
"It was really, really fun to have a game like that and to get a win ... I think we can turn everything around and start over."