CLEVELAND -- Infielder Yamaico Navarro, obtained from the Red Sox on Saturday, joined the Royals for Sunday's game.
Navarro was obtained with Minor League pitcher Kendal Volz in a trade for infielder Mike Aviles.
"I'll play him like I was going to play Aviles," manager Ned Yost said. "Play games when Esky [Alcides Escobar] needs a break or when [Mike] Moustakas or [Chris] Getz needs a game."
"It's good for me because I'll play more," said Navarro, who was used sparingly by the first-place Red Sox.
"Shortstop is my position, I like shortstop," Navarro said. "I played a little at second base and a lot at third base, and left field, too."
Navarro also played for the Red Sox briefly in 2010. In two seasons, he batted .177 (14-for-79) in 36 games for the Sox. He belted his first and only homer in his first at-bat this year as a pinch-hitter against the Astros' J.A. Happ.
He was assigned uniform No. 24 after wearing 60 for Boston.