Bruins' Horton leaves with injury, does not return

CHICAGO -- The Boston Bruins took a significant hit in the first overtime of Game 1 of the Stanley Cup Final against the Chicago Blackhawks when top forward Nathan Horton appeared to suffer an upper-body injury.

He did not return to the game, won 4-3 by Chicago on a goal by Andrew Shaw 12:08 into the third overtime.

Bruins coach Claude Julien did not provide an update on Horton during his postgame remarks.

"Nothing right now," Julien said. "There's nothing to say because our doctors haven't finalized the evaluation properly."

Horton, a part of Boston's top line, was tied up with Blackhawks defenseman Niklas Hjalmarsson with about seven minutes remaining in the first overtime. Horton went immediately to the dressing room.

Horton, who had an assist on Milan Lucic's game-opening goal, has seven goals and 11 assists for 18 points in 17 games. He is a plus-22 in the Stanley Cup Playoffs, the leading total among all players.