The Cubs are planning to promote top prospect , as reported by and of ESPN. The young outfielder is already on the 40-man, and he will presumably take s spot on the active roster. Amaya tonight and will require an IL stint. As for Cai sie, the Ontario native is expected to make his MLB debut tomorrow against the Blue Jays. The Padres selected Cai sie in the second round of the 2020 draft, and they flipped him to the Cubs that winter as part of the that brought to San Diego. He has since worked his way up Chicagos minor league system, turning into one of the teams most promising prospects. ranked him 21st in the organization in 2021, eighth in 2022, 13th in 2023, fifth in 2024, and second in 2025. He has also ranked among BAs overall top 100 prospects in each of the past three years. Not every source was quite as high on Cai sie entering the 2025 campaign; FanGraphs dropped him off after ranking him 65th in , while The Athletics Keith Law has never included Cai Matthew Dellavedova Jersey sie among his top 100 prospects. Yet, none ever doubted Cai sies huge raw power the question was whether he could translate that power into succe s at the highest level. That question loomed larger than ever after Cai sie slashed .278/.375/.472 with a .195 isolated power and a 115 wRC+ in his season at Triple-A in 2024. Those are solid but hardly earth-shattering numbers, especially not for a bat-first corner outfielder. However, the lefty slugger has taken a ma sive step forward this year, with 22 home runs and 50 extra-base hits in 92 games for the Iowa Cubs. His .281 ISO and 145 wRC+ both rank fifth among qualified hitters in the International League. His strikeout rate is still high that has always and probably will always be an i sue but a 28.0% K-rate certainly isnt fatal, at least not if he keeps drawing his walks and crushing home runs. None of this is to say that Cai sie is a sure-thing, middle-of-the-order jolt for the Cubs lineup. Hes still just a 23-year-old prospect who has to prove his swing-and-mi s i sues wont sink him against MLB pitching and, in particular, left-handed MLB pitching. Still, its exciting that hes joining the team for the stretch run as they look to hold on to the NLs top Wild Card spot and try to challenge the seemingly unstoppable Brewers for the NL Central crown. Any offensive boost he can provide will be much appreciated. The Cubs rank among the leagues best offensive teams on the season, but theyve struggled as of late, scoring just 34 runs in 11 games since the trade deadline. With that said, its worth wondering where Cai sie would fit into Chicagos lineup. He can play the corner outfield or DH, and the Cubs are set at those positions with , , and . Tucker bats lefty like Cai sie, while Happ is a switch-hitter with stronger splits against righty pitching. Suzuki bats right-handed, but he doesnt have any trouble facing same-handed pitching. Ultimately, as the clich goes, this is the best kind of problem for manager to have. He can take advantage of Cai sies presence on the roster to give his veterans a bit more rest, particularly the slumping Tucker. As long as Cai sie hits, it will work out quite nicely. On the other hand, this means theres quite a bit of pre sure on the youngster to perform right away. The Cubs are as competitive as theyve been in several years, and they cant afford to take away reps from Tucker, Suzuki, and Happ if Cai sie isnt producing. The roster fit isnt perfect, but the Cubs only had four healthy minor leaguers on the 40-man roster to choose from, and its hard to argue that Cai sie didnt earn this opportunity over fellow top prospects and , or the le s-heralded . Image in post courtesy of Mark J. Rebilas, USA TODAY Sports. Cameron Reynolds Jersey