Shun Yamaguchi

I met him at Spectrum Field in Clearwater, Florida in 2020, when the Toronto Blue Jays came to play the Philadelphia Phillies in a spring training game.

Shun signed a 2012 BBM card.

https://www.baseball-reference.com/players/y/yamagsh01.shtml

Ty Van Burkleo

I met him at the Pro Ball Baseball Clinic at Pirate City in Bradenton, Florida in 2017.

Ty signed a 1991 BBM card #343.

https://www.baseball-reference.com/players/v/vanbuty01.shtml

Orestes Destrade

I met him at a Tampa Bay Rays game at Tropicana Field in St. Petersburg, Florida in 2014.
He was the Rays TV postgame host.

Orestes signed a 1991 BBM card #214.

http://www.baseball-reference.com/players/d/destror01.shtml