This is Ramón Arano, the winningest pitcher in Mexican League history. He won 338 games and pitched in six decades. He died yesterday.
In the above photo, he is wearing the uniform of the Marlines de Boca del Río, of the Veracruz Winter League. I’ve had a root around on the Internet for the last 20 minutes, and can’t find any mention of there being a relationship between these Marlines and the Miami Marlins. But the design would suggest that they have a relationship of some sort. Either that or there’s some copying going on.