The Patriots made their first appearance in a Super Bowl in franchise history that year, meeting the Chicago Bears with Jim McMahon and Walter Payton. The Bears' famed 46 defense defeated Eason and the Patriots in Super Bowl XX, and Eason became the first starting quarterback in Super Bowl history not to complete a pass, going 0-for-6, and was sacked 3 times. Eason was replaced with Steve Grogan, but the Patriots still lost the game, by a final score of 46–10, which was the largest winning margin of any Super Bowl up to that time.