[5] Three years later, on 5 April 1908, he started in the final of the 1908 Coupe Dewar, which ended in a 2–1 loss to CA Paris.
[7] He was most likely one of the best players of the team because later that year, the USFSA selected him for the French national team, being a member of the French squad that competed in the football tournament of the 1908 Olympic Games in London, but he failed to feature in a single game as France was knocked out in the semifinals by Denmark following a resounding 17–1 loss.
[3][4][8] Between 1906 and 1908, he was called-up by France five times, but stayed on the bench in all of those occasions, thus never becoming an international; however, he never protested, showing great sportsmanship.
[1] On 18 April 1909, Zimmermann started in the final of the Coupe Dewar in 1909 at Stade de Charentonneau, which ended in a 5–0 loss to Gallia Club.
[9] In 1912, he helped AS Française win the USFSA Paris championship, and this victory qualified the club for the USFSA national championship, helping his side reach the final at Stade Colombes on 28 April, which ended in a 2–1 loss to Stade raphaëlois.