Early in the 1925 season Wilson hit the longest home run on record at Ebbets Field against the Brooklyn Robins, but fell into a slump in May, and was replaced in left field by Irish Meusel. On July 2 he hit two home runs in one inning, tying Ken Williams' major league record set in 1922, but his hitting slump continued. In August McGraw told reporters that he had "... made the mistake of rushing along," and sent him to the Giants' minor league affiliate, the Toledo Mud Hens of the American Association. At season's end, a front office oversight—or possibly, deliberate inaction—left him unprotected on the Toledo roster, and the last-place Chicago Cubs acquired him on waivers. "They let go the best outfielder I ever played alongside", said Giants right fielder Ross Youngs, "and they're going to regret it."