Oklahoma City is saddled with a 2-1 NBA Finals deficit, but the team is still talking tough.

The Thunder's Serge Ibaka told reporters he hasn't been impressed by Miami Heat star LeBron James' defense.

"LeBron is not a good defender," Ibaka said. 

The Heat and Thunder are set to face off in Game 4 of the NBA Finals Tuesday night. Tipoff is set for 9 p.m. at Miami’s AmericanAirlines Arena and the game will be broadcast on ABC. The NBA is using a two-three-two home court format for the Finals, which means the Thunder must find a way to win one of the next two games in Miami to shift the series back to Oklahoma City.

Scroll down to catch up on all the latest NBA Final headlines, including more of Ibaka's comments about James' defense:

-- LeBron James at the top of his game as Heat hold 2-1 lead over Thunder

Buzz: After lackluster playoff performance last year, LeBron James is at the top of his game and leading the Heat's title charge.

-- Thunder hope to bounce back after Game 3 woes

Buzz: Oklahoma City was in worse trouble during Western Conference Finals against Spurs, knows it can climb out of hole.

-- Serge Ibaka not impressed by Heat forward LeBron James' defense on Thunder's Kevin Durant

Buzz: Ibaka says, "LeBron is not a good defender. He can play defense for two to three minutes but not 48 minutes.”

-- Berardino: NBA playoff mantra is adjust or perish

Buzz: Despite back-to-back wins, expect Heat to keep making adjustments and pushing to improve.

-- Spoelstra on Finals: `It's not always going to be pretty'

Buzz: Heat coach says despite glitzy matchup, NBA Finals are more of a grind

-- Bosh expects offensive output to improve as series progresses

Buzz: After returning from injury, Heat's Chris Bosh expects to be a bigger offensive threat as NBA Finals continue

-- Miami defense has focused on taking out James Harden

Buzz: Heat aimed to shut down Oklahoma City playmaker

-- NBA Finals: Kevin Durant's fouls are troubling for Thunder

Buzz: Durant's foul trouble has caused big headaches for Oklahoma City