Feinstein is great... read most of his books.
One of the best books he ever wrote was "A Season on the Brink". Feinstein chronicled his up-close and personal season of college basketball with Bobby Knight back in '85-'86, as he was granted access, by none other than Bobby Knight himself, for the season to journal what life was like for Indiana hoops players and their coach.
Lots of other really good reads too... "A Good Walk Spoiled" is a classic. "Tales from Q-School" is another great read.
Feinstein just seems to capture the essence of sports, in words, like very few other sports writers can.
"One on One" definitely ranks up there as one of my favs from him.