The next season, he batted .304 and slugged .512 for the American Association's Milwaukee Brewers,[3] and was purchased by the White Sox.

He had a strong throwing arm and was highly regarded as a center fielder;[4] He led the AL in outfield putouts and assists in 1919.

That fall, Felsch agreed to join a group of White Sox players that planned to intentionally lose the 1919 World Series in exchange for monetary payments from a network of gamblers.

[5] There was little doubt of Felsch's guilt on the field, as he not only hit poorly, but also misplayed flyballs in key situations.

[1] However, after the scandal broke in late 1920, Felsch, along with seven other players, was made permanently ineligible for organized baseball by Commissioner Kenesaw Mountain Landis.

[1] Felsch spent the next 15 years touring the country with various amateur and semi-pro teams, including Scobey, Montana Outlaws in 1925 and 1926;[6] Regina, Saskatchewan in 1927 (Regina Balmorals of the Southern Saskatchewan Baseball League), in Virden, Manitoba of the Winnipeg Senior League;[7] and finally in Plentywood, Montana in 1928.