David Vincent Segui, (/sɪˈɡiː/; born July 19, 1966) is an American former Major League Baseball first baseman.

During a 15-year baseball career, Segui played with the Baltimore Orioles, New York Mets, Montreal Expos, Seattle Mariners, Toronto Blue Jays, Texas Rangers and Cleveland Indians.

[1] Unlike others, however, Segui had a doctor's prescription for HGH to counter a deficiency he had been diagnosed with, and had previously admitted to using them.

Segui has also admitted to using anabolic steroids during his career with the Mets, obtaining them from former clubhouse attendant Kirk Radomski.

He was included in the Mitchell Report, which named people who were found using either HGH, steroids, or some other type of PEDs.