Boyd came to the Majors in 1982 with the Red Sox. He pitched for them through 1989, then played for the Expos in 1990. His final year in the Majors was 1991 where he pitched for both the Expos and Rangers. He pitched in the replacement Spring Training in 1994 for the White Sox, and that was the extent of his time in the Majors. Surprisingly, even his wikipedia page doesn't note his time as a replacement player, although a list of 1995 replacement players on wikipedia has him listed with them, as well as this article and a few others.
Dennis got his first Topps card in the 1985 Topps set, and appeared in every set from 1985-1992. He also got into the 1990 Topps Traded set. He is missing 1983 and 1984 Topps cards to complete his career Topps run.
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