Grzelcyk will be in the Bruins' lineup for Thursday's playoff opener against the Maple Leafs, Eric Russo of the team's official site reports.
Grzelcyk, who left Tuesday's shootout loss to the Jets early due to an upper-body issue, logged 19:58 worth of ice time in Thursday's 4-2 win over the Lightning.
Grzelcyk, who suffered an upper-body injury in Tuesday's shootout loss to the Jets, will be evaluated back in Boston in advance of Thursday's home game against the Lightning.
Grzelcyk (lower body) will not play in Saturday's game against the Canadiens, Amalie Benjamin of NHL.com reports.
Coach Bruce Cassidy relayed after Friday's morning skate that Grzelcyk is suffering from a minor lower-body issue.
Grzelcyk was sent down to AHL Providence and recalled Monday in order to keep him eligible for the AHL playoffs, Joe Haggerty of NBC Sports Boston reports.
Prior to the NHL's All-Star break, Grzelcyk logged a goal and six points in 29 games, to go along with a plus-14 rating.
Grzelcyk recorded a pair of helpers in a season-high 19:48 of ice time in Wednesday's win over the Senators.
Grzelcyk continues to see ice time with the man advantage, despite being stuck in an 11-game goalless streak.
Grzelcyk was recalled from AHL Providence on Tuesday.