Nilsson will be assigned to the Blues’ American Hockey League affiliate, the Chicago Wolves.
Nilsson, 24, has appeared in two games with the AHL’s Bakersfield Condors this season, going 2-0-0 with a 2.01 goals-against average and a .935 save percentage. In 77 career AHL appearances with Bakersfield and Bridgeport, Nilsson has a record of 37-33-4 with a 2.71 GAA, a .908 save percentage and four shutouts.
Nilsson has gone 10-12-2 (3.14, .901) in 26 games with Edmonton this season, and shows a mark of 19-21-4 (3.10, .900) with one shutout in 49 career NHL outings with the Oilers and the New York Islanders.
Nilsson was originally drafted by the Islanders in 2009 (third round, 62nd overall).
Lundstrom, 23, has appeared in four AHL games with Chicago this season, going 1-1-0 with a 2.75 GAA and a .901 save percentage. He has also played 13 games with Elmira in the ECHL.
Lundstrom was a fifth-round selection by the Blues in the 2011 NHL Entry Draft.