Sugar Ray Marimon and Yordano Ventura were given the honor, the Royals announced on Monday.
Marimon is 4-1 with a 2.05 ERA in 13 games for the Blue Rocks. He's struck out 54 batters while walking just 16, and opponents are hitting just .192 off the right-hander. This is Marimon's second-straight All-Star appearance after being named a Midwest League All-Star last season while pitching for Low-A Kane County.
Ventura is 3-5 in 12 starts for the Blue Rocks. He's posted a 3.21 ERA and struck out 70 batters in 56 innings.
Speaking of Kane County, the Cougars boast their own ranks of All-Stars this season. Two-thirds of the Western Division's starting All-Star outfield will be made up of Royals' farm hands. Lane Adams and Jorge Bonifacio will both start on their home field when the Cougars host the Midwest League All-Star Game on June 19.
Adams was hitting .301 entering play Tuesday, with 13 doubles and 42 RBIs. He'd also swiped 11 bases this season. Bonifacio was batting .300 with 27 RBIs and 36 runs scored.
In addition to the outfielders, pitcher Matt Ridings is also on the All-Star roster. Ridings replaced teammate Nick Graffeo after Graffeo was promoted to Wilmington.
The Kane County coaching staff, including manager Brian Buchanan, will be the field staff for the Western Division team, as well.