Why did Kevin garnett change his jersey number?

Answer 1

It could possibly be related to Adidas, who featured KG in their campaign 'It takes 5'. While I do not know why he is wearing #5; the Celtics retired #21 in 1966 for guard Bill Sharman, so Garnett could not use it in Boston.

Answer 2

"KP34″ as stitched on the tongue referencing KG's close friend and mentor, the late Kirby Puckett of the Minnesota Twins