Mota, 22, was 7-2 with a 1.81 ERA in 16 games (15 starts) with the White Sox Dominican Summer League team. He struck out 80 over 89 2/3 innings.
Because Mota was taken in the Triple-A phase of the Rule 5 Draft, not the Major League phase, he did not need to be added to the Cubs' 40-man roster, which stands at 38 players.
On Thursday, the Cubs selected right-hander Michael Parisi from the St. Louis Cardinals in the Major League phase of the Rule 5 Draft.
Carrie Muskat is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.