Bochum became the first Bundesliga club to crash out in the German Cup with a 1-0 defeat at promoted second division side Jahn Regensburg, and they were joined on the sidelines by last season’s semi-finalists Saarbrücken of the third tier. Bochum were the 13th of 18 top flight clubs in action and it turned out to be the unlucky number for them when Regensburg defender Florian Ballas tapped the winner with 20 minutes left on Sunday. It was Bochum’s second straight first-round exit and a repeat of their fate from 2003 when they also lost in Regensburg in the opening round. Bochum’s dream over af…