Louie Iacuzzi, a 44-year-old from Malden, Mass., was driving along a stretch of Massachusetts Route 28 known as McGrath Highway in nearby Somerville on Monday morning, when, according to what Iacuzzi told The Boston Globe, he and his friends saw cars swerving to avoid an object that turned out to be a 2018 American League East championship banner that had apparently gone missing while in transit to the Red Sox.