Poitras was recalled from AHL Providence on Thursday.
After appearing in exactly 33 games at the NHL level in each of the last two seasons, Poitras hasn't yet spent time with Boston this year. However, he'll join the big club after Elias Lindholm sustained an upper-body injury in Tuesday's game against Nashville. Across 39 appearances with Providence this year, Poitras has recorded eight goals, 16 assists and 33 PIM.