Hamburg manager Bruno Labbadia was disappointed with both the result and the way his side played in their 1-0 loss to Leverkusen on Sunday.
Hamburg missed a chance to move into the top half of the table after Albin Ekdal scored an own goal in the 18th minute.
"We are gutted over the result and the way the defeat happened hasn't exactly got me jumping for joy either," he told the club's official website. "We analysed the game this morning, the way we do after victories in order to put it behind us as soon as possible. We can enjoy or bemoan a result for a day after the game but preparation for the visit of Hoffenheim begins on Tuesday."
Labbadia was particularly unimpressed with the side's play in the attacking third of the pitch with poor final balls wasting possession and strikers spurning the opportunities they did have.
"We had more chances and should have had even more but the final pass was missing. That is no good to me when we lose in the end," he added.
Speaking ahead of Saturday's game against Hoffenheim, the coach revealed the knock Josip Drmic took to his knee against Leverkusen may be more serious than originally thought, but Michael Gregoritsch is likely to be available.
"We hope it is nothing serious, but we will have to wait for the results", Labbadia explained. "[Gregoritsch] had two extra training sessions over the weekend and we must see how his body reacts this week."
Hoffenheim are currently second last in the Bundesliga, but the 50-year-old is taking nothing for granted against a side that has won three of their last five league matches.
"You cant really class them as a side second bottom in the table. Over the last six games they belong to the best sides in the Bundesliga. I expect a difficult game. They visit us in good form. They are not only playing well but also have very high effort levels. It will be a draining encounter," he concluded.