Ryan's heroics, Begarin's athleticism lead Celtics past Bucks in Summer League

In the desert heat of Las Vegas, a summer exhibition between the Boston Celtics and Milwaukee Bucks became something more than its modest billing — a stage where forgotten men and unfinished prospects made their cases to belong. Matt Ryan, who was delivering food for a living just one year ago, buried a game-winning shot with one second left, while 19-year-old Juhann Begarin offered a glimpse of what raw, electric potential looks like before it has learned to govern itself. These are the moments summer leagues exist to produce: not championships, but revelations.