Although Celtic have yet to play in the Scottish Premiership this weekend, Borussia Dortmund are now entirely focused on Tuesday night’s Champions League match. The Germans were pushed hard by the unfancied Bochum on Friday night. They fell behind by two goals early on before nearly conceding a third but rallied with an impressive second-half performance to win 4-2. It was a much-needed victory after a heavy 5-1 defeat to Stuttgart last weekend. To their credit, they showed an excellent mentality to overcome adversity and deliver a win in front of their fans. Nonetheless, it’s clear they have …