Reinhard Rauball’s long reign as Borussia Dortmund president will end after 23 years overall in autumn as he won’t be seeking another term. Dortmund said in a statement Tuesday that the 75-year-old Rauball will propose his deputy, Reinhold Lonow, for election as his successor. Rauball presided over the club 1979-1982, 1984-1986, and since 2004 when he helped the club avoid insolvency and turned them into a serious rival for Bayern Munich, winning two their eight national titles and three German Cups in that period. “We treat Reinhard Rauball’s decision with the greatest possible respect. Our p…