Baez, the ninth overall pick in 2011, has played 84 games at Iowa, where he's hitting .240 with 14 homers, 55 RBIs and 35 extra-base hits. Baez is on the World roster for Sunday's game.
The duo, also listed as the top two Cubs' prospects by Baseball America, wrapped the first half of Iowa's season with a 7-4 win over the Oklahoma City Red Hawks on Friday.
Daniel Kramer is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.