Brad Keller

I met him at Tropicana Field in St. Petersburg, Florida in 2022, when the Kansas City Royals came to play the Tampa Bay Rays.

Brad signed a 2020 Topps card #79.

https://www.baseball-reference.com/players/k/kellebr01.shtml

Diego Castillo

I met him at Tropicana Field in St. Petersburg, Florida in 2021, when the Seattle Mariners came to play the Tampa Bay Rays.

Diego signed a 2020 Topps Update card #U-175.

https://www.baseball-reference.com/players/c/castidi01.shtml

Chase Anderson

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.

Chase signed a 2020 Topps card #62.

https://www.baseball-reference.com/players/a/anderch01.shtml