The 29-year-old defenseman was injured in a collision during his first shift of the first period in a 4-1 win at the Calgary Flames on Tuesday. Schultz did not return to the game and Pittsburgh went with five defensemen.
The Penguins are already playing without top-four defenseman Brian Dumoulin, who had ankle surgery Dec. 1 and was expected to be out at least eight weeks.
Schultz returned from injured reserve Dec. 6 after sustaining an undisclosed injury at practice Nov. 21. He has eight points (two goals, six assists) in 27 games this season, but none in six games since his return.
The Penguins called up defenseman
Kevin Czuczman
and forward
Thomas Di Pauli
from Wilkes-Barre/Scranton of the American Hockey League on Friday prior to their game at the Edmonton Oilers (9 p.m. ET; ESPN+, TVAS, SNE, SNO, SNP. ATTSN-PT, NHL.TV).
