Claim: FSV Optik Rathenow club (German association football club) merged with Turnverein Vater Jahn Rathenow to create VfL Rathenow and was renamed BSG Verkehr Rathenow in 1948.
Evidence: FSV Optik Rathenow is a German association football club who compete in the Regionalliga. In the 1930s this club merged with Turnverein Vater Jahn Rathenow to create VfL Rathenow, which went on to play second division football in Berlin-Brandenburg. This was renamed BSG Verkehr Rathenow in 1948. A community sports club known as Sportgemeinde Rathenow was formed in 1945 in the aftermath of World War II out of the membership of VfL and Rathenower Ballspielclub.