Vizcaino is the second-rated pitching prospect in the Cubs organization behind CJ Edwards. He was 1-1 with two saves and a 3.51 ERA at three different stops in the minors this season after returning from two years of arm injuries. Vizcaino threw well in spring training, hitting 100 mph on the radar gun, but the Cubs took things slow with him this season.
Lake returns after a being demoted earlier this season. He hit .216 with 102 strikeouts in 291 big-league at-bats in his first stint. Straily, Rosscup and Schlitter also spent time with the Cubs this season. Straily was acquired in the deal that sent Jeff Samardzija and Jason Hammel to the Oakland Athletics.
Jokisch also threw well in spring training and will make his major league debut when he pitches for the Cubs. He was 9-10 with a 3.58 ERA in 26 starts for Iowa. Jokisch was an 11th-round pick of the Cubs in 2010. First-time call-up Lopez was a 16th-round pick in 2011. He hit .290 between Double-A and Triple-A this season.
Jokisch and Lopez were added to the 40-man roster. To make room, the Cubs transferred outfielder Justin Ruggiano to the 60-day disabled list due to an ankle injury. Jokisch and Lopez were subject to being taken in the Rule 5 draft per service time rules, so adding them to the 40-man roster was needed.