(CNN) -- Hamburg have sacked coach Bruno Labbadia after the club's 5-1 thrashing by German Bundesliga rivals Hoffenheim on Sunday.
Club officials decided to act just three days before the second leg of Hamburg's Europa League semifinal against Fulham.
Labbadia has been in the job for less than ten months after joining from Bayer Leverkusen last year. Hamburg currently sit seventh in the Bundesliga table.
Their season now rests on the return leg of their tie with Fulham on Thursday, after a goalless first match in Germany last week.
"There was no alternative to this," said Hamburg's chairman Bernd Hoffmann in a statement on the club's official Web site.
"We have analyzed the situation and decided we saw that as things were we would not be able to succeed against Fulham. We need to improve the probability of us being successful on Thursday."
Labbadia's assistant Ricardo Moniz has been handed the job for the rest of the season. He previously worked as a coach at English Premier League club Tottenham.
"Ricardo Moniz will take charge of the team until the end of the season. He is incredibly enthusiastic, knows the team and English football well and lives for football," Hoffman added.
"Anybody who knows Moniz knows also that there is nobody who is more 100% HSV than he is. We believe that Ricardo will be able to get that extra percentage out of us which had disappeared recently."