The absence of Stephen Curry has kept the Houston Rockets relevant, but the window might be closing on their significance to this postseason. With the expected return of the league's scoring leader and reigning MVP, the Golden State Warriors hope to realign their title defense when they go for a split in Houston on Sunday. The Warriors' chances to sweep this series were lost with a rare defeat in Game 3 without Curry, who left the opener last Saturday with a sprained right ankle.