A narrow 1-0 win at Cologne was enough for Hoffenheim to join the top four in the Bundesliga on Saturday and enter the qualification zone for the Champions League. Just a minute after Cologne striker Anthony Modeste had his goal disallowed for being offside, Hoffenheim finally broke the deadlock in the 61st minute. David Raum swung over a cross into the box and Stefan Posche headed it into the bottom corner. Andrej Kramaric and Christoph Baumgartner then missed very good chances to make it 2-0, and it was Florian Grillitsch with a brilliant block that secured the visitors the three points. Col…