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LOS ANGELES (AP) — LeBron James and Bronny James became the first father and son to play together in the NBA on Tuesday night Los Angeles Lakers season opener.

LeBron and Bronny checked into the game together with four minutes left in the second quarter, prompting a big ovation from the home crowd aware of the enormity of the milestone. LeBron had already started the game and played 13 minutes before making history with his 20-year-old son.

LeBron James is the 39-year-old leading scorer in NBA history, while LeBron James Jr. was picked in the second round by the Lakers last summer. They are the first father and son to play in the best basketball league in the world at the same time, let alone on the same team.

Ken Griffey Sr. and Ken Griffey Jr. were courtside at the Lakers’ downtown arena to witness the same history they made in Major League Baseball. The two sluggers played 51 games together for the Seattle Mariners in 1990 and 1991 as baseball’s first father-son duo.

The Jameses and the Griffeys met during pre-game warmups for some photos and warm conversation between two notable family lines.

LeBron, a four-time NBA champion and 20-time All-Star, first spoke about his dream of playing alongside Bronny a few years ago while his eldest son was still in high school. The dream became a reality after Bronny entered the draft as a teenager after one collegiate season, and the Lakers took him with the 55th overall pick.