Marcus Camby figured his night was over. Big lead, fourth quarter, road game in Houston the next night. Camby was all set to kick back and watch the final quarter of the Denver Nuggets’ 110-99 win over the Cleveland Cavaliers on Friday night. But when Cleveland sliced Denver’s 25-point lead to 13 with 7:23 remaining in the game, Camby was sent back in. He scored four of his season-high 26 points in the final quarter and grabbed six of his 17 rebounds. “It’s always in the backs of our minds about blowing leads,” Camby said. “The guys stepped up down the stretch.” Denver needed to the way LeBron James was playing. James finished with his first triple-double of the season — 30 points, 10 assists and 10 rebounds — and 10th of his career. “We contained him,” said Allen Iverson, who finished with 25 points and nine assists. “That’s all you can do with players like that. You can’t play this game scared.” The Cavaliers cut Denver’s cushion to 103-98 on Damon Jones’ 3-pointer with 3:15 left in the game. But Denver closed the game out with a 7-1 run. The struggling Cavaliers have now lost four of their last five and dropped into a first-place tie with Washington for the best record in the Eastern Conference. “We’ve just got to regroup,” James said. The Cavaliers received a scare when Denver’s JR Smith fell on James’ right ankle when both were scrambling for a loose ball late in the fourth quarter. James sat out all of 8 seconds before checking back in. “It’s been better,” James …