Baker, a graduate of
Weequahic High School in
Newark, New Jersey and
Colorado State University, was selected in the second round of the
1978 NFL draft by the
Detroit Lions. Listed as 6-6 and 250 pounds, he combined speed and strength. He made his mark early as he recorded 23 sacks (an unofficial stat at that time) his rookie year, with five sacks in a single game against the
Tampa Bay Buccaneers. He played for the Lions for five seasons, starting 66 of 67 games. In his last season with the Lions, 1982, when sacks became an official statistic, he totaled 8.5 in only nine games. He also had two career interceptions with the Lions. During his career with the Lions he unofficially totaled 75.5 sacks including a record 23 sacks in 1978, 16 in 1979, 18 in 1980 and 10 in 1981, which are the franchise's top three all-time, single-season sack efforts. It also ranks as one of the highest for the first five years of a player in football history. He was one of the anchors of the "Silver Rush", Detroit's defensive line from 1978 to 1982, which consisted of Baker,
Doug English,
William Gay, and
Dave Pureifory; the group set the franchise record for sacks. In 2021, Baker was listed as the NFL's unofficial all-time single-season sack leader due to
Pro Football Reference adding sack statistics from 1960 to 1981, the year before the stat became official. Baker recorded 23 sacks as a rookie in 1978 with the Detroit Lions, tying the official record of 23 sacks by
Myles Garrett. He ranks among the
NFL's career sack leaders, with 65.5 official and 131 unofficial sacks to make him one of 62 players in the "100 Sack Club". A contract dispute had Baker sent to the
St. Louis Cardinals in 1983. He had 13 sacks that season along with two interceptions. He had ten sacks the following year, had four in 1985 and then closed out 1986 with 10.5 sacks. In 1987, he was a reserve defense lineman for the
Cleveland Browns, then served in the same position in 1988 for the
Minnesota Vikings. He returned to the Browns as a starter for all 16 games of the 1989 season as well as for all nine games he played for the Browns in 1990, his final NFL season at age 34. ==Post-NFL career==