Suns point guard Steve Nash is having yet another great season, but his back is beginning to be a serious problem.

"It's mentally fatiguing to play physically at a deficit for so long," Nash said. "I can't do the things I want to do and it's painful out there. But I've got to find a way to suck it up right now, especially with [Goran Dragic] out."

Nash is leading the NBA with 11.3 assists per game.

"I'm sore when I wake up in the morning," the All-Star said. "So it's just something I've got to try to fight through. Hopefully it can get better, and I'm sure four [games] in five nights didn't help.

"I can't do what I want to do out there, and I'm just trying to do what I can to help the team. Hopefully, I'm not hurting the team."