Emelin will be sidelined at least for the next week after he was injured on his first shift in a 4-2 loss at the Ottawa Senators on Wednesday.
Therrien brushed aside a report that the 28-year-old defenseman will be sidelined for six weeks.
"He's going to be re-evaluated next week to see if he is going to be able to play," Therrien said. "We're there right now."
Subban, who is averaging 26:03 of ice time per game, was hobbled after he blocked a Bobby Ryan slap shot late in the second period Wednesday. Subban returned for the third period and finished with 30:13 of ice time.