With the Royals trailing, 3-1, Ventura gave up a double to Justin Upton down the right-field line.
Moments later, Yost, trainer Nick Kenney, pitching coach Dave Eiland and catcher Salvador Perez all met on the mound. After a few moments of discussion, Ventura left with Kenney back to the dugout.
Ventura gave up three runs on 10 hits, struck out six and walked two in four-plus innings.
Jeffrey Flanagan has covered the Royals since 1991, and for MLB.com since 2015. Follow him on Twitter @FlannyMLB.
This story was not subject to the approval of Major League Baseball or its clubs.