Given the question: Facts: - sport: motor-paced racing - caption: theo verschueren in 1966 - birth date: 27 january 1943 - image size: 250px - image: theo verschueren 1966.jpg - birth place: sint jansteen , belgium Based on these bullet points, write a short biography describing the life of theo verschueren .
The answer is:
theo verschueren -lrb- born 27 january 1943 -rrb- is a retired belgian cyclist .he had his best achievements in motor-paced racing , in which he won the world championships in the professionals category in 1971 and 1972 and finished second in 1969 , 1970 and 1974 .during his career verschueren took part in 67 six-day road races , winning the race of antwerp in 1968 and 1972 .he married the daughter of belgian cyclist petrus van theemsche .he is not related to adolph verschueren , another motor-paced racing world champion from belgium .