MIAMI -- By both accounts, their intentions are genuine.

LeBron James simply wants to be pushed by the best in the summer just as much as he does during the NBA's rugged regular season and playoffs. Apparently, there's no better offseason sparring partner available than Kevin Durant.

And for Durant, no individual measuring stick in the league stacks up as tall as the all-around game belonging to James, a three-time league MVP who is just entering his prime.

Don't get this twisted.

This isn't some sort of apprenticeship. It's about mutual appreciation. For two years now, James and Durant have tried to explain the dynamic of their training sessions with one another, workouts they refer to as Hell Week.

James considers Durant his toughest defensive assignment in the league. But when it comes to defending his relationship with Durant, well, that comes quite easily.

Still, that doesn't stop the questions from coming, such as the one James faced as the Heat turned their attention to Tuesday's Christmas showdown against Durant and Oklahoma City in their first matchup since the Finals.

Why would two elite players who are rivals and just met for an NBA championship continue to work out together? I mean, it's not like you see Peyton Manning and Tom Brady tossing the ball around together in the offseason.

James attacked the question with the same versatility, elusiveness and sheer power he displays when he's driving down the lane against a backpedaling defender.

"That's not our problem," James said. "That's not our concern, what everyone else is doing. That's what a lot of people's problem is -- they're not used to change. They're not used to doing something different and stepping outside the box. You guys know me. I've done a lot of stuff that a lot of other people don't care for, or whatever the case."

By then, James was on a roll. So he stayed on the attack.

"That's who I am," he continued. "I try to do things that's outside the box, and that's all it comes down to. We can't worry about what the other greats have done. We make our own mark. That's what it's all about."

A peculiar rivalry, it is.

But James and Durant will rekindle their love-loathe relationship Tuesday on the same AmericanAirlines Arena court where the Heat finished off the Thunder in Game 5 of the Finals on June 21. It's no wonder these two teams are so closely connected, even beyond the friendship their marquee players share. No other team in the NBA can sympathize with the Thunder's plight this season than the Heat.

This time a year ago, the Heat played from a familiar script when they entered American Airlines Center in Dallas to face a Mavericks team that beat Miami in the 2011 Finals.

Much like James did after tasting defeat in his first shot at a title with Miami, Durant entered the offseason determined to improve every aspect of his game, including a perceived reluctance to defend and to expand his low-post skill set.

And like James, Durant has responded to losing in the Finals by coming back with a season in which his averages in rebounds, assists, blocks and steals, his free throw shooting, his 3-point shooting and his overall field goal percentage are at career-high levels through the Thunder's 21-5 start.

"I'm a competitive guy," Durant told The Oklahoman of his summer workouts, including the one with James. "I'm sure you guys have seen that in me. That's what it was all about. I'll work out with anybody. I would have worked out with Kobe Bryant. I would have worked out with Carmelo [Anthony]. I just wanted to work out and get better."

The comparisons don't end there, either.

Thunder players have said any result other than a title this season would be a disappointment. It's a declaration that sounded much like the "championship-or-bust" mandate Heat guard Dwyane Wade issued entering last season.

After losing to Dallas, the Heat also tweaked their roster by adding Shane Battier just weeks before the 2011-12 season started. Oklahoma City made a bolder move when it dealt James Harden to Houston and acquired Kevin Martin, a veteran 20-point per game scorer who has bought into his role coming off the bench, and is having one of the most efficient seasons of his career.

Wade said he can sympathize with the motivated approach the Thunder carried into this season. Then, he pointed out that "sympathize" wasn't quite the fitting term.

"Sympathize?" Wade joked. "That's not the word I'd want to say. But I understand. I understand. Obviously, losing in the Finals, I understand what they go through. Especially when you play the team that beats you. So I understand the mindset. We all knew this was going...