Andrew Velazquez

I met him at a Minor League game at Florida Auto Exchange Stadium in Dunedin, Florida in 2016, when the Charlotte Stone Crabs came to play the Dunedin Blue Jays.

Andrew signed a 2015 Topps Heritage Minor League card #87.

https://www.baseball-reference.com/players/v/velazan01.shtml

Ryne Stanek

I met him at the Tampa Bay Rays Winter Development Program at Tropicana Field in St. Petersburg, Florida in 2016.

Ryne signed a 2015 Florida State League Top Prospects card.

http://www.baseball-reference.com/players/s/stanery01.shtml

Steve "Doc" Watson

I met him at a Minor League game at Bright House Field in Clearwater, Florida in 2015, when the Charlotte Stone Crabs, whom he was the pitching coach for, came to play the Clearwater Threshers.

Steve signed a 2014 Charlotte Stone Crabs team set card #28.

http://www.baseball-reference.com/minors/player.cgi?id=watson002car