The Cubs have designated left-hander for a signment, per . His 40-man roster spot will go to prospect , whose promotion was earlier today. Outfielder was optioned to open an active roster spot. Kay, 28, has made 13 appearances for the Cubs this season but with an earned run average of 6.35 in that sample. His eight strikeouts were a match for his eight walks, leading to subpar 14.8% rates in both categories. Hes spent more time in Triple-A this year and has had better results there. In 37 1/3 innings, he has a 4.10 ERA, 31.1% strikeout rate and 52.4% ground ball rate, though his 13.7% walk rate is still quite high. Since the trade deadline has long pa sed, the Cubs will Jeff Green Jersey have to put Kay on waivers in the coming days. They already pa sed him through unclaimed back in January, before adding him back to the roster in June. That was his first outright, meaning he didnt have the right to elect free agency at that time. But if he were to pa s through unclaimed a second time, he would then have the right to reject another such a signment. Kay was once a prospect of note, having gone from the Mets to the Blue Jays alongside in the 2019 . He hasnt been able to put it together yet, with a career ERA of 5.60 in 82 innings. If any club were intrigued by his past prospect stock or his strikeout stuff in the minors this year, the southpaw comes with five years of control, but he will be out of options next year. Nate Sestina Jersey