Based on my research, here is my analysis of the claim:

Reasoning:

• Luka Dončić reached 15,000 career points on March 31, 2026, at the age of 27 years and 31 days old¹
• This milestone makes him the third-youngest player in NBA history to reach 15,000 career points, behind only LeBron James (25 years, 79 days) and Kevin Durant (26 years, 78 days)¹
• ESPN officially reported on March 10, 2026, that "Luka Doncic is the third-youngest player to reach 15,000 points in NBA history, behind LeBron and KD"²
• The NBA's official Facebook page confirmed the milestone, stating "Luka Dončić becomes the third-youngest player to reach 15,000 career points, trailing just LeBron (25) and KD (26)!"³
• Luka accomplished this feat in his 513th career game, making him the sixth-fastest player to reach the 15,000-point club by games played¹⁴
• This milestone was achieved during his historic scoring month of March 2026, where he scored 600 points in a single month (the 11th player in NBA history to accomplish this)⁴

Overall validity: 100%

1. Youngest NBA Players To 15000 Points - Screwball
2. Luka Doncic is the third-youngest player to reach 15,000 ... - Instagram
3. Luka Dončić becomes the third-youngest player to reach ... - Facebook
4. Luka Dončić had a historically good month of March as a scorer