It was in the third period that Olofsson, in connection with a decisive pass, turned to his foot and fell on the ice.
Now the message comes that the 24-year-old Swede may change ice for rehab for at least five weeks, the club states after a medical examination.
"Forward Victor Olofsson gets lost for five to six weeks due to a lower body injury," writes the Buffalo Sabers on his website.
Olofsson was named the rookie of the month in the NHL in October and November. Buffalo won the meeting 3-2 after an extension.