Coach Bruce Cassidy says it is hard to see his team’s potential until it gives maximum effort.

Patrice Bergeron’s four goals – three on the power play – lead the Bruins to a dominating 5-1 win over Detroit.

Frederik Andersen makes 33 saves to lead Carolina to a 3-0 win over Boston, which has just one goal on 64 shots the past two games

The Florida Panthers become the 14th team in NHL history to start 7-0-0.

Boston builds a three-goal lead and holds on to hand San Jose its first loss of the season, 4-3.

Goalie Linus Ullmark will start for the Bruins on Friday in Buffalo, where he was drafted in 2012 and played until coming to Boston in the offseason.

Philadelphia pulls away with three goals in the third period.

McAvoy agrees to an eight-year deal worth an average annual value of $9.5 million – the richest in team history.

Boston plays its opener at home on Saturday night against Dallas.

Jack Studnicka is one of the top prospects for the Bruins and will get ice time in Providence, while Chris Wagner could be back in Boston soon.