Zastryzny is being evaluated for a tight lat, Mark Gonzales of the Chicago Tribune reports.
It's unclear how serious the injury is at this point, though more should be known once he is checked out by team doctors. The 25-year-old spent some time with the Cubs earlier in the season, though he allowed three runs during his only appearance (four innings).
Zastryzny optioned to Triple-A Iowa on Sunday, Patrick Mooney of CSN Chicago reports.
The reliever was only up with the big club for the weekend but was able to get in some game action, allowing three earned runs on three hits while issuing four walks in four innings against the Yankees on Saturday. Zastryzny will head back west to Des Moines, where he's compiled an unsightly 6.88 ERA to go with a 9:13 BB:K across 17 innings thus far in 2017.
Zastryzny was recalled from Triple-A Iowa on Saturday.
Matt Szczur was designated for assignment to make room on the roster for Zastryzny. The 25-year-old had a 6.88 ERA through 17 innings at Triple-A before being recalled. Zastryzny was with the Cubs briefly in 2016, posting an impressive 1.12 ERA and 17:5 K:BB through eight appearances (16 innings). He'll offer an extra relief arm for the Cubs, whose bullpen has been overworked as of late.
Zastryzny was optioned to Triple-A Iowa on Monday, Patrick Mooney of Comcast Sports Chicago reports.
Zastryzny struggled to get results in spring, as he finished with a 7.36 ERA and a 2.05 WHIP over 7.1 brutal innings. He was sharp in 16 innings for the Cubs last year but has very little relief experience at any level. The 25-year-old will likely pitch in the late innings for Iowa and could be an option in the Cubs bullpen down the stretch in 2017.
Zastryzny (calf) threw two scoreless innings while striking out four and walking one in his return from injury Tuesday.
Zastryzny looked strong in his return after missing some time due to a calf injury the southpaw sustained when he was hit with a comebacker. It was never an overly serious injury, and it seems he just needed some rest. The 24-year-old will look to earn a spot in the Cubs bullpen for 2017.
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