Grzelcyk notched an assist in Saturday's 3-2 loss to the Flyers.

Grzelcyk notched an assist and two shots on goal in Monday's 2-1 loss to the Sharks.

Grzelcyk scored a goal on five shots in Tuesday's 3-2 overtime win over the Kings.

Grzelcyk notched two power-play assists and two shots on goal in Saturday's 6-2 win over the Flames.

Grzelcyk logged a power-play assist and three blocked shots in Tuesday's 4-3 shootout loss to the Islanders.

Grzelcyk recorded an assist and went minus-2 in Saturday's 4-3 loss to the Canucks.

Grzelcyk signed a one-year, $2.75 million contract with the Penguins on Monday, per Elliotte Friedman of Sportsnet.

Grzelcyk (illness) is expected to return to the lineup Saturday against the Flyers, Belle Fraser of The Hockey News reports.

Grzelcyk is battling an illness and won't travel with the Bruins to Montreal ahead of Thursday's game against the Canadiens, per Joe Haggerty of Boston Sports Journal on Wednesday.

Grzelcyk (undisclosed) will return to action Monday against Toronto.