Chara, who has played 14 of 22 NHL seasons with Boston, will become the sixth person to play 1,000 games for the Bruins, joining Ray Bourque (1,518), Johnny Bucyk (1,436), Patrice Bergeron (1,065), Don Sweeney (1,052) and Wayne Cashman (1,027).
The Bruins have won three straight games and will have Matt Grzelcyk in the lineup. The defenseman left a 3-2 overtime win against the New York Islanders on Saturday early in the first period after being slashed on the left leg.
The Flyers are 2-5-1 in their past eight games, but their .750 home points percentage (13-3-4) at Wells Fargo Center is tied with the Bruins for second in the NHL, behind the St. Louis Blues (.761). They won their season-opening game as the home team against the Chicago Blackhawks in the 2019 NHL Global Series in Prague, Czech Republic.