A 5-0 DFB-Pokal drubbing against Bayern Munich on Wednesday has left Van Marwijk again facing close scrutiny after weeks of uncertainty at the beleaguered Bundesliga club.
Defeat signified a seventh straight defeat in competitive games and a fourth successive blank in front of goal.
That slump has seen Hamburg sink into the relegation zone and next up is a crucial Bundesliga clash with rock-bottom Eintracht Braunschweig on Saturday, a fixture that the Dutchman has identified as the biggest game of Hamburg's season.
When quizzed on his future in the aftermath of the Bayern setback, Van Marwijk told ARD: "I don't know.
"I'm not thinking about my job or my career.
"I'm trying my best to prepare my team for the most important game of the year."
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