"Also, it gives him an extra day to throw a side," Yost said.
Left-hander Danny Duffy will pitch on Thursday in the series opener against the Blue Jays.
Yost and the Royals will have two interesting and difficult decisions to make starting on Tuesday, when Cueto arrives here at Progressive Field and is put on the 25-man roster: First, they must decide who comes off the 25-man roster, and then, down the road, who comes out of the rotation.
The Royals don't have any logical candidates on the staff who have any options left and could be sent out. That could make right-hander Joe Blanton vulnerable. Blanton, though, has been solid in his last two outings and overall has been a sound edition to the staff.