Thomas Pannone, who once pitched for the Blue Jays, just threw a perfect game in Triple-A.

The 32-year-old lefty spun nine flawless innings for the Nashville Sounds, Milwaukee's top affiliate, beating the Durham Bulls 3-0 on Monday.

He needed just 94 pitches to do it, an efficient outing that never let Durham's lineup find any footing.

That's the third perfect game in Nashville Sounds franchise history.

More remarkably, it's just the fifth single-player, nine-inning perfect game in the 142-year history of the International League.

Baseball Reference notes the other 12 recorded perfect games in that league's history came in seven innings or shorter, making Pannone's feat genuinely rare.

He now joins a short list of names attached to this specific achievement, including Bronson Arroyo, Tomo Ohka, Mariano Rivera, and Joe Niekro.

Why this feat carries extra weight for a journeyman arm

Pannone's career has included stops with several organizations since his time in Toronto, the kind of path that rarely produces a moment this historic.

A full nine-inning perfect game at any level of professional baseball is exceedingly rare, let alone one that places a pitcher alongside a Hall of Fame closer like Rivera.

For a 32-year-old still grinding through the minors, a night like this offers real validation, regardless of what it ultimately means for his path back to the majors.

Perfect games at the Triple-A level don't always lead to a call-up, but they do get noticed by evaluators watching for arms capable of this kind of command.

Whether this outing sparks renewed big-league interest in Pannone, or simply stands as a career highlight in an already well-traveled journey, it's the kind of accomplishment that speaks for itself.

For Blue Jays fans who remember him from his time in Toronto, this is a nice footnote to a career that's kept going well past his stint north of the border.