Travis Kelce isn't exactly lighting up the celebrity golf tournament in Nevada on the green ... but, he's pretty lit himself -- pounding beers with his pals.

Jason Kelce shared his love for his brother, Travis Kelce, while the two took part in the American Century Championship in Lake Tahoe1. Jason said Travis is his 'best friend on the planet' and a 'great uncle' to his kids.

Jason Kelce shared some heartwarming details about his relationship with his brother and "New Heights" podcast cohost Travis Kelce. "Travis and I have been close for a long time," Jason, 37, told reporters at the American Century Championship golf tournament on Saturday,