The moves Wednesday include third-year options for Johnson and Hayward and the fourth year for Ellington.
Johnson averaged nine points, three rebounds and almost two assists as a rookie last year. The fourth overall pick set a franchise record for 3-pointers made by a rookie with 103. With the addition of forward Derrick Williams, Johnson is going to be counted on heavily at shooting guard.
Ellington was a first-round pick in 2009 and has been a versatile player off the bench in his first three seasons, while Hayward played sparingly as a rookie last year.