DENVER -- The Chicago Cubs will place right-handers John Lackey and Hector Rondon on the 15-day disabled list Friday and recall rookie pitchers Rob Zastryzny and Felix Pena, a source told ESPN.
Lackey has been dealing with a sore shoulder since leaving last Sunday's game against the St. Louis Cardinals. The Cubs want to be careful with Rondon who had soreness in his right triceps recently but pitched in two games earlier this week.
Both moves were considered precautionary, according to a source.