Gruden was waived by the Penguins on Friday, Elliotte Friedman of Sportsnet reports.
Gruden (upper body) won't play Saturday against the Red Wings though he's expected to return Sunday versus the Senators, Wes Crosby of NHL.com reports.
Gruden has sustained an upper-body injury and is considered day-to-day, per Wes Crosby of NHL.com on Wednesday.
Gruden penned a two-year, $1.55 million contract with the Penguins on Tuesday.
Gruden was reassigned to AHL Wilkes-Barre/Scranton on Friday, per Seth Rorabaugh of Tribune-Review Sports.
Gruden was recalled from AHL Wilkes-Barre/Scranton on Friday, according to Seth Rorabaugh of Tribune-Review Sports.
Gruden was reassigned to AHL Wilkes-Barre/Scranton on Friday, Seth Rorabaugh of Tribune-Review Sports reports.
Gruden was recalled from AHL Wilkes-Barre/Scranton on Tuesday.
Gruden was reassigned to AHL Wilkes-Barre/Scranton on Wednesday, per Seth Rorabaugh of Tribune-Review Sports.
Gruden was promoted from AHL Wilkes-Barre/Scranton on Tuesday.