[jchcollins]

My underrated player that is either forgotten or nobody has heard of to begin with is Addie Joss.

Deadball era pitcher, died at age 31 from tubercular meningitis before the 1911 season began. Cleveland Naps, along with Lajoie, Elmer Flick and Cy Young, for a time. Joss's first MLB start was a one-hit shutout in 1902, and then in 1908 he pitched the 2nd perfect game of the modern era against the White Sox. He pitched another no-hitter in 1910. 160-97 on his career, 45 of those wins were shutouts. Won 20 games or more 4x. 2nd lowest career ERA (behind Ed Walsh) at 1.89 - and his career WHIP - the measure of how difficult a pitcher is to get on base off of - is the lowest of all-time at 0.968. (There are only three pitchers all-time with more than 1k innings with a career WHIP under 1 - Joss, Ed Walsh, and Jacob deGrom...) In this respect compared to Nolan Ryan - famously in addition to the no-no's and K's - the most difficult pitcher to get a base hit off of percentage-wise - Ryan's career WHIP is not in the top 300 all-time. When I see fanatic Facebook posts about how Nolan Ryan is apparently the greatest pitcher of all time - I sometimes ask people if they've ever heard of Addie Joss...

You read in multiple places where Joss was comparable to Mathewson or Johnson, he just gets forgotten because he died so young.

I don't know, obviously I wasn't around 120 years ago - but I like the story and the idea of Joss as kind of this mythical, obscure HOF'er. He's got both a portrait and a pitching pose T206, and then what must be the first ever "In Memorium" card that was issued after he died in the T205 set.