Gabe Gross

I met him at Tropicana Field in St. Petersburg, Florida in 2018. He was there to celebrate the 10 year anniversary of the 2008 American League Champion Tampa Bay Rays team.

Gabe signed a 2009 Upper Deck card #889.

https://www.baseball-reference.com/players/g/grossga01.shtml

Felipe Lopez

I met him at the 2nd annual Weeks Brothers Holiday Baseball Camp on December 17, 2016, at Lake Brantley High School in Altamonte Springs, Florida.

Felipe signed a 2009 Upper Deck card #983.

http://www.baseball-reference.com/players/l/lopezfe01.shtml