Golden State Warriors Coach Steve Kerr attended the team’s practice Sunday and took a few moments to talk about the health issue that has caused him to take an indefinite leave of absence.

Kerr underwent back surgery to repair a ruptured disk July 28 and then, on Sept. 4, he underwent a second surgery. The second procedure, he said Sunday, was because spinal fluid was leaking. He told reporters that his body is “recalibrating” and that, while he is bored, he’s still dealing with headaches.

“After the first two days of training camp, I realized I need to take a step back and focus on my rehabilitation in order to be ready for the grind of another NBA season,” Kerr said in a statement Oct. 2. “As I noted last week, my summer was difficult and no fun due to the multiple back surgeries. At this point, I simply want to get healthy and back to my normal daily routine on and off the court.”

Kerr ruptured the disk during Game 5 of the NBA Finals and is being replaced on an interim basis by Luke Walton.