CLEVELAND Cavaliers forward LeBron James (L) shoots as Los Angeles Lakers guard Lonzo Ball defends during the first half of an NBA basketball game in Los Angeles. James announced he would be joining Ball and the Lakers to try and dethrone the Golden State Warriors and grow his own legacy. AP

LAS VEGAS, United States — Rajon Rondo officially joined the Los Angeles Lakers on Friday with a clear idea about his future with LeBron James.

“We’re expected to win now,” Rondo said.

Rondo agreed to a one-year deal worth $9 million earlier this week to suit up alongside James, whose signing hasn’t yet been announced by the Lakers.

The veteran point guard is eager to be a mentor to Lonzo Ball, and he sees a chance for immediate success with the thoroughly revamped club.

The Lakers haven’t made the playoffs for a franchise-record five consecutive seasons, but Rondo believes they’ll make immediate strides back toward contention for a 17th NBA championship.

“You put any group of players around LeBron James, as he has done (eight) straight times, he went to the finals,” Rondo said.

“So my expectations are the exact same thing. Even with the Warriors adding (DeMarcus Cousins) and the Rockets being who they are, I think we fit right up there in the mix. It is early, obviously, and I’m not promising anything, but at the end of the day, I expect to win. Nothing else.”

Rondo is a familiar figure to Lakers fans, and not necessarily in a good way. He played a major role for the Celtics when they met the Lakers in the NBA Finals, winning a ring with Boston in 2008 and losing to LA in 2010.

Seeing Rondo on the other side of that enduring NBA rivalry won’t be as weird to Rondo as it might be to some Lakers fans.

“Does it feel strange? Um, no,” Rondo said. “My battles with the Lakers were over a decade ago, and none of the players I was battling with are on the same roster.”

The 32-year-old Rondo expressed no concerns about playing with Ball, the precocious passer chosen by the Lakers with the second overall pick in last year’s draft.

Ball will be sidelined for most of the summer with a torn meniscus in his left knee, but Rondo is eager to work on their chemistry in the fall.

“I’m excited to get a player that age and try to help him as much as I can,” said Rondo, a starter for all but small portions of his first 12 NBA seasons spent with five franchises.

Rondo sees the Lakers’ potential surplus of ball-handlers as an advantage. He isn’t worried about finding roles for everyone in coach Luke Walton’s up-tempo offense, which is designed to create plenty of offensive chances for every player.

“It will be very versatile, and I don’t think you’ll be able to scout and stick to one game plan as far as being able to stop a certain player,” Rondo said.

“I think guys like LeBron or myself, I haven’t played with a lot of guys that make plays for me. So it’s going to be exciting to be able to just get up, get a couple of easy looks, be able to push the pace in the open court.”

The Lakers also announced the re-signing of guard Kentavious Caldwell-Pope, who got a one-year deal worth $12 million to provide a perimeter shooting threat to an offense that could still use more outside shooters.

The Lakers haven’t yet announced the acquisitions of James or veterans Lance Stephenson and JaVale McGee during a thorough makeover following the worst half-decade in franchise history.