Kevin Durant practiced with the U.S. Olympic basketball team on Friday, a major step toward getting him back on track for the Paris Games that open next week. It was Durant’s first time on the floor with the team this summer. He strained his calf a few days before the July 6 start of training camp in Las Vegas and missed the team’s first three exhibition games. The U.S. is 3-0 in its pre-Olympic tune-ups, beating Canada in Las Vegas and then defeating Australia and Serbia at Abu Dhabi, United Arab Emirates, earlier this week before traveling to London.