LeBron James faces his toughest challenge yet with the LA Lakers
LeBron James - Wikipedia
LeBron James Reveals the Toughest NBA Championship Run of His Career
LeBron says 'bubble' season the toughest challenge of career
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The greatest challenge of LeBron James' career was bringing a championship to Cleveland” - JJ Redick believes this season is not the most challenging season in LeBron James' career
LeBron James still figuring out scope of challenges with Lakers
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