 On July 24, 1983, with the Royals playing against the Yankees at Yankee Stadium, in the top of the ninth inning with two out, Brett hit a go-ahead two-run homer off of Goose Gossage to put the Royals up 5–4.After the home run, Yankees manager Billy Martin cited to the umpires a rule, stating that any foreign substance on a bat could extend no further than 18 inches from the knob.The umpires measured the amount of pine tar, a legal substance used by hitters to improve their grip, on Brett's bat; the pine tar extended about 24 inches.