Former winners Fortuna Düsseldorf and Kaiserslautern won second division duels on Tuesday to reach the German Cup quarter-finals. Forward Jona Niemiec came on in the 85th minute, smashed the equalizer two minutes later and then also grabbed a stoppage-time 2-1 winner in Magdeburg to send Düsseldorf through. Kaiserslautern beat Nuremberg 2-0 from Richmond Tachie in the 75th minute and Ragner Ache three minutes later in the debut of their new coach Dimitrios Grammozis. Both winners have lifted the Cup twice in the past, Düsseldorf in 1979 and 1980, Kaiserslautern in 1990 and 1996. Later Tuesday,…