Chris Paul has been dealing with right foot soreness since Game 2 of the Western Conference Finals.
Paul responded well to treatment before Game 4. Paul scored 27 points in the game.
"Chris felt better. His foot felt better," D'Antoni said. "I called him after Game 3, and he said, 'Coach, I'm telling you, if I can get my foot right, we'll beat these guys.' Lo and behold, he got his foot right. And just like I said, we're back to even."
The Rockets haven't listed Paul on the official injury report during the series, and he had been evasive when asked about his health.
Paul acknowledged Tuesday night that he had undergone "a whole lot of treatment" in recent days.
"It's about as good as it's going to be right now," Paul said. "But for us, it's not about that. It's about going out there and getting stops and making big plays when we needed to."