The Cubs haven't yet been able to solidify the last spot in the bullpen, and now they'll try someone else:
#Cubs add Zac Rosscup. Dylan Floro to Iowa. 40 man move TBD— Carrie Muskat (@CarrieMuskat) May 22, 2017
Zac Rosscup last pitched in the major leagues in 2015 and missed all of the 2016 season with various injuries. This year at Triple-A Iowa he's been in nine games covering 15.2 Innings and has a 3.45 ERS and 1.021 WHIP with 25 strikeouts.
Those are pretty good K numbers. Rosscup always did have a decent arm. He turns 29 in a couple of weeks. Maybe he's finally figured things out.
As noted in the tweet, the Cubs will also have to make a 40-man roster moves to add Rosscup. I wouldn't be surprised if they try to get Dylan Floro through waivers by designating him for assignment. There are a couple of other pitchers on the 40-man who could also be run through waivers.
As always, we await further developments.