Carlo, who has struggled with head injuries, is practicing again but when he returns is still undetermined.

Taylor Hall scores a power-play goal and Boston beats Minnesota, 4-3.

Boston loses for the first time after opening the season with three wins.

Jake DeBrusk scored 21 seconds into the game and added an empty-netter as Boston improves to 3-0.

Boston’s home opener is Saturday night against Arizona, starting of a stretch in which they play six of seven games at TD Garden

Jim Montgomery, a former UMaine standout, wins his Bruins coaching debut.

Veteran Patrice Bergeron is back for one more season, and the Bruins are rallying around him with their season opener on Wednesday.

Mike Reilly, Nick Foligno and Chris Wagner could be sent to Providence as Boston trims its roster in advance of its season opener.

Taylor Hall is limited because of an upper-body injury, but the Bruins are hoping he’ll be ready for the season opener next Wednesday.

Oskar Steen, 24, signed a two-year, one-way contract with an annual average value of $800,000 last April.