Boston has lost four of six since a seven-game winning streak.
Boston has lost four of six since a seven-game winning streak.
Macklin Celebrini scored his team-leading 14th goal of the season, and the San Jose Sharks beat the Boston Bruins 3-1 on Sunday night.
Shakir Mukhamadullin added his first goal of the season, Collin Graf added an empty-netter and Yaroslav Askarov made 33 saves for the Sharks, who have won three of four.
The No. 1 overall pick in the draft, Celebrini scored on a power play 11:45 into the second period.
