Martins was forced to leave the arena after 22 minutes of the match against Skjern in great pain after dislocating his shoulder.
The worst-case scenario is that Martins will be forced to undergo surgery, as it is far from the first time that his shoulder has not stayed in place.
"It is not the first time that he has dislocated his shoulder. So unfortunately there is a high risk that he will have to have surgery. And then the season could be over. We will only know for sure on Tuesday, when he will scanned", said Aalborg director Jan Larsen to TV 2 Sport.
For Aalborg this is devastating news as Thomas Arnoldsen is also ruled out for an indefinite period of time which could weaken the Danish champions' chances in the coming weeks, where the next task is on Thursday against Füchse Berlin in the Champions League quarter-finals.
If Miguel Martins is expected to have an operation, it will also mean that he has played his last match for Aalborg as he will leave the club in the summer for Dinamo Bucharest.