The Kings are set to sign free agent shooting guard Sam Merrill, per Chris Haynes of Yahoo Sports (Twitter link). Tony Jones of The Athletic reveals (via Twitter) that Merrill is signing a non-guaranteed two-year contract, meaning Merrill will be competing to join the team’s eventual 15-man roster in training camp. Sacramento currently has just 12 players inked to guaranteed deals, per our roster tracker. Earlier this summer, Chima Moneke and Matthew Dellavedova were both also signed to non-guaranteed deals with a chance to make the opening night roster. The 6’4″ Merrill was selected with the final pick in the…