Sheary, Crosby lead Penguins past Bruins 5-1

Pittsburgh Penguins' Conor Sheary (43) celebrates his goal with Chad Ruhwedel (2) and Bryan Rust (17) as Boston Bruins goalie Tuukka Rask, left, collects himself after a collision with Bruins' David Krejci, bottom center, in the second period of an NHL hockey game in Pittsburgh, Sunday, Jan. 22, 2017. Rask was replaced by goalie Zane McIntyre soon after the play. (AP Photo/Gene J. Puskar) (The Associated Press)

Boston Bruins' Zdeno Chara (33) checks Pittsburgh Penguins' Patric Hornqvist (72) in the corner during the second period of an NHL hockey game in Pittsburgh, Sunday, Jan. 22, 2017. (AP Photo/Gene J. Puskar) (The Associated Press)

Boston Bruins' Tim Schaller (59) tries to shoot in front of Pittsburgh Penguins goalie Matt Murray (30) in the second period of an NHL hockey game in Pittsburgh, Sunday, Jan. 22, 2017. (AP Photo/Gene J. Puskar) (The Associated Press)

Conor Sheary scored two goals, Sidney Crosby added his league-leading 28th and the Pittsburgh Penguins won their fourth straight game, 5-1 over the Boston Bruins 5-1 on Sunday.

Pittsburgh led 2-1 through two periods before breaking out in the third with three goals in a span of 2 minutes, 57 seconds.

Sheary scored his 17th and has nine goals in nine games. Bryan Rust added his 12th and Patric Hornqvist his 11th for the Penguins, who won a season-high seventh straight at home. Pittsburgh the NHL's best home team, is 13-0-1 in its last 14 home games.

Evgeni Malkin had two assists for a season-best seven-game point streak. Crosby added two assists for a three-point game. Matt Murray made 44 saves to win his fourth straight game.

David Krejci scored his 11th for the Bruins, who have lost four straight and five of their last six.