"But it created a hole on our roster where we didn't have any protection up the middle if something happened to Omar [Infante] or something happened to [Alcides] Escobar. We didn't have that protection, but we do now," Yost said.
"Danny did a nice job at third base and could fill in for a couple innings at second but Christian gives you more depth at second, short and third. There's more versatility there."
Colon, who can also fill in at third, had a bang-up day on the Fourth of July during his previous stay with the Royals. He had two doubles and a triple, scoring three times in a 7-1 victory at Cleveland.
"That start for me was great but it made it a lot easier when [Yordano] Ventura went out there and pitched that well," Colon said.