After winning Olympic gold, Grewal turned professional and signed with the Panasonic team and later with the 7-Eleven Cycling Team. According to teammate Bob Roll, Grewal was the captain of the 1986 7-Eleven team through the spring.
Following his Olympic triumph, Grewal turned pro and partnered with Panasonic before joining the 7-Eleven team. According to teammate Bob Roll, Grewal led the 1986 7-Eleven team through the spring season.