The appearance at the Fall Stars Game will cap a breakthrough season for the 21-year-old Pompey. The native of Mississauga, Ontario, began the year at Class A Advanced Dunedin and went through every level of the club's Minor League system before making his Major League debut in September.
The expectation is that Pompey will have an opportunity to compete for Toronto's starting job in center field during Spring Training alongside Anthony Gose and Kevin Pillar. Pompey is currently ranked the organization's No. 3 prospect by MLB.com behind left-hander Daniel Norris and right-hander Aaron Sanchez.
The Fall League was a different kind of experience for Osuna. He missed almost the entire 2014 season following Tommy John surgery and appeared in only eight Minor League games at the tail end of the year.
Toronto used last year's Fall League to get some much needed innings for right-hander Drew Hutchison, who also was recovering from Tommy John surgery, and took a similar approach with Osuna. The results weren't necessarily pretty, as Osuna has allowed 10 earned runs in 7 1/3 innings for the Solar Sox, but more importantly, he appears healthy.
Osuna is expected to begin next season without any complications from his surgical procedure. He'll be on an innings limit and likely will begin the year in the low Minors, but he remains one of the club's top prospects and is currently ranked No. 5 in Toronto's system by MLB.com.
Scouting and farm directors from every Major League organization, in consultation with Arizona Fall League director Steve Cobb and his staff, selected the players for the annual showcase that pits top prospects from the Fall League's East division and West division clubs.
The Fall Stars Game will take place on Saturday at 8 p.m. ET. The contest will be televised by MLB Network and streamed on MLB.com. Paul Severino (play-by-play), Joe Magrane (game analyst) and John Manuel (game analyst) will call the game.
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.