NEW YORK, NY - JANUARY 29: Head coach Jeff Hornacek of the Phoenix Suns reacts to a call in the first half against the New York Knicks at Madison Square Garden on January 29, 2016 in New York City. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Elsa/Getty Images)

The slumping Phoenix Suns have axed head coach Jeff Hornacek, the National Basketball Association team has announced. Hornacek had been in charge since May 2013.

“The Phoenix Suns have relieved Jeff Hornacek of his duties as head coach following his two-plus seasons in the position,” the team said in a statement on Monday.

The Suns have lost 19 of their past 21 games, during which time they have been missing several key players.