Andersen was expected to return to the Maple Leafs’ crease for Saturday’s game after being sidelined since Dec. 22 with a groin injury.
The 29-year-old carries a 2.50 goals-against average and .923 save percentage through 30 appearances in 2018-19.
Michael Hutchinson has drawn four starts in Andersen’s absence, posting a 2-2-0 record with the Maple Leafs since being acquired from Florida in a trade on Dec. 29. He will get the nod once again in Boston.
Toronto also recalled goaltender Kasimir Kaskisuo on an emergency basis from the AHL’s Toronto Marlies.