Bruins general manager Peter Chiarelli confirmed that the 27-year-old winger, who played in only 46 games last season after battling concussions, should be ready to play when the Bruins take the ice in September.
"By all accounts from our medical staff, [Horton] will be ready to play when it comes time to play," Chiarelli said when he addressed the media at TD Garden this afternoon.
Horton was knocked out of last year's Stanley Cup Finals against the Canucks when Aaron Rome blindsided him with a check that resulted in a suspension for the Vancouver defenseman.
Horton returned to the ice to start the 2011-12 season, but was sidelined again with another concussion when the Flyers' Tom Sestito took him out in January.
Chiarelli also said that Bruins defenseman Adam McQuaid has been cleared for contact after suffering a concussion late last season.
Chiarelli also addressed the major moves being made by teams around the NHL. "We don't react right away," Chiarelli said. "But we do not ignore... we are not standing still." But Chiarelli said no roster changes are expected prior to the start of the season.
Chiarelli also formally announced the multi-year contract extension for head coach Claude Julien.
"Over [Julien's] tenure here, heís show the ability to adapt," Chiarelli said. "Heís had a very, very disciplined team, which is a testament to his coaching. At the same time, it is a tough team. Thatís a difficult balance to maintain and heís been able to do that with success."
The Globe's Kevin Dupont contributed to this report. He will have more from today's press conference in our Bruins Blog this afternoon.