Dan Boyle’s agent on Tuesday confirmed that there have been discussions with the Sharks about a potential contract extension for the veteran defenseman. Boyle has one year remaining on his current deal paying him $6.67 million in 2013-14. According to Boyle’s agent George Bazos Boyle has expressed his desire to remain in San Jose and thinks he can be an effective player through the age of 40. That would suggest that Boyle who turned 37 on July 12 is seeking a two or three-year extension. Bazos didn’t rule out that something could get done before the start of the season but talks have not been extensive to this point. On July 30 when asked about the status of Boyle Patrick Marleau and Joe Thornton who are all pending unrestricted free agents in 2014 Sharks general manager Doug Wilson said: “We don’t talk about negotiations publicly. Have we had discussions with [them]? Yes. Will we have discussions going forward? The answer is yes.” Despite his advancing age Boyle could still command a significant salary in the final years of his impressive career. Kimmo Timonen a fairly similar player to Boyle in terms of age stature point production and responsibility recently signed a one-year $6 million extension with Philadelphia. In the last four seasons Timonen who is a year older than Boyle at 38 has 148 points in 285 games while Boyle has 176 points in 279 games. Neither player has missed significant time due to injury. In 2013 each led his respective club in time-on-ice per game on the power play. Despite missing the playoffs the Flyers had the league’s third best power play (21.6 percent) while the Sharks were seventh (20.1).