Nike's founder Phil Knight, in his first interview since revealing his retirement plans in April, talked to USA Today about the past but also about competitive threats from Under Armour and Adidas.

“The industry has changed enormously,’’ Knight said. “I’ll just say it’s grown and the companies that are in the industry are in more different areas than ever before. So Under Armour is a very serious competitor, but Adidas is the next biggest and they’ve got a lot of money to spend and they have a lot of capability. We worry about them all. And it isn’t just shoes.

“In golf, we compete against Titleist. In women’s athletic gear, we compete against Lululemon, so we worry about them all.’’

The USA Today interview is here: