 Marsh made his England debut in a 1–1 draw with Switzerland at Wembley in November 1971, coming on as a substitute for Francis Lee.He won a total of nine caps, scoring one goal, which came in a 3–0 victory over Wales.It has been reported that the England manager Alf Ramsey told him "I'll be watching you for the first 45 minutes and if you don't work harder I'll pull you off at half time," to which Marsh replied