The New Orleans Pelicans have appointed former Phoenix Suns assistant Willie Green as their new head coach.

Green's appointment was delayed due to his commitments with Phoenix, who made it to the NBA Finals before Giannis Antetokounmpo ended their hopes to claim Milwaukee Bucks' first title since 1971.

Before joining the 2021 Western Conference champions, Green enjoyed a three-year spell at the Golden State Warriors, where he worked as an assistant coach under Steve Kerr as they won back-to-back NBA Championships in 2017 and 2018.

Pelicans executive vice president of basketball operations David Griffin praised Green for his "tireless work ethic and authenticity of character" as he announced the new head coach on Thursday.

"He brings a vast amount of basketball knowledge and experience to our team as both a coach and former player, along with exceptional leadership qualities and an innate ability to connect with players, staff and fans alike," Griffin said.

"We could not be more excited to welcome Willie and his family to New Orleans."

Green spent 12 years as a player in the NBA and appeared in 731 regular season games between 2003-15, reaching the playoffs seven times.

In his previous role with Phoenix, the Suns' defensive coordinator oversaw the NBA's sixth-best defensive rating, while he worked as head coach for the NBA Summer League in 2019, where he managed a 3-1 record in Las Vegas.

"I want to thank Mrs. Benson [Pelicans governor], David Griffin and the entire Pelicans organisation for having faith in me to lead this talented group of players moving forward," Green added.

"It's a blessing and an honour to get this opportunity in a special place like New Orleans. I look forward to getting to work and immersing myself and my family into the local community."

Green takes over from Stan Van Gundy, who mutually agreed to leave the Pelicans despite spending just the one year in charge.

Van Gundy's side disappointed last campaign as they went 31-41 to quash any playoffs hopes they may have had at the start of the year.

Green, who becomes the third-youngest coach in the NBA, may now look to build his team around first-round NBA 2019 Draft pick Zion Williamson, who has endured a tumultuous start to life in New Orleans.