Unless there is a last-minute development, Reilly Smith will not be present for the start of Bruins training camp Thursday.

Smith, 23, a restricted free agent, is not close on an extension, according to agent Anton Thun. The team’s No. 2 right wing is coming off his three-year entry-level contract, worth $900,000 annually. He would be the first holdout in Peter Chiarelli’s nine seasons as general manager.

Smith and defenseman Torey Krug, who also is unsigned, are skating and working out together in Connecticut. It’s expected that Krug also will not be present for camp’s opening. Lewis Gross, Krug’s agent, was unavailable for comment.