CLEVELAND — LeBron James didn’t hold back in weighing in on J.R. Smith’s contract impasse with the Cavaliers.

James feels the Cavs owe the shooting guard, who helped them win an NBA title last season.

“Negotiations are always two-sides, but J.R. did his part,” James said Friday following practice. “He showed up every day. … Became a two-way player, a model citizen in Cleveland and he’s a fan favorite, obviously we all know that.

“All of the sudden now he’s a season ticket holder at the Indians games.

“We just miss him. We miss having him around. He’s a big piece of our team and they just need to get it done,” he said.

Smith remains unsigned as his agents and the Cavs have been unable to finalize a contract. When the team opened training camp earlier this week, General Manager David Griffin said the Cavs have made Smith an “incredibly competitive and aggressive offer.”

KINGS: After years of searching for a new home, the Sacramento Kings are set to open a new venue that raises the bar of what an arena can be.

Along with some of the modern accoutrements that have become commonplace like smartphone apps that allow fans to order food or watch replays from their seats, giant screens to watch the game and high-speed connections that let fans post photos almost instantaneously, the Golden 1 Center also has many first-of-its-kind features.

There are the airplane hangar doors that can open to turn the venue into an indoor-outdoor arena and the “smart turnstiles” that will allow fans to enter at more than triple the usual speed.

76ers: No. 1 overall pick Ben Simmons broke a bone in his right foot Friday during Philadelphia’s final training camp scrimmage.