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LeBron James sent his fans into a near frenzy while doing an intense exercise routine this week. His fans are desperate to know the name of this particular exercise. It looks painful.

If LeBron's exercise looks risky to you, don't worry: his personal trainer was right there to make sure the King didn't throw out his back.

The LA Lakers superstar is known for his intense workout routines to stay in top shape during the off season.

LeBron, 34, celebrated his wife Savannah's 33rd birthday on Tuesday, Aug. 27.

By the way, here are a couple of throwback pics for you LeBron fanatics. LeBron was spotted in 2003, carrying a PS2 game console and talking on a flip phone (remember those?). The teenager was in his rookie year with the Cleveland Cavaliers who signed him right out of high school.

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