As Kawhi Leonard holds firm on his desire for a maximum contract, extension talks with the San Antonio Spurs have failed to gather traction despite a looming Friday deadline, league sources told Yahoo Sports. Leonard, the 2014 NBA Finals Most Valuable Player, would become a restricted free agent in July without an extension agreement by midnight Oct. 31 – the deadline for eligible extensions for the NBA's draft class of 2011. Spurs president and general manager R.C. Buford and agent Brian Elfus have had several discussions in recent weeks, but no progress has been made, league sources told Yahoo Sports. Leonard, 23, is considered one of the NBA's rising young stars, and multiple league executives told Yahoo Sports he'll command a max offer sheet on the market next summer. The Spurs would assuredly match a sheet and retain Leonard, but there remains the risk of Leonard signing a similar offer sheet to Dallas Mavericks forward Chandler Parsons. Read more http://sports.yahoo.com/news/source...s-between-kawhi-leonard--spurs-050509203.html