The ATP Tour officials say they are reviewing "allegations of racial prejudice" after Ryan Harrison and Donald Young exchanged words in the first set and had to be separated by the chair umpire during a changeover in play on Monday.

Arthur Ashe Stadium had been meticulously cleaned and was mostly empty. There were no echoes of "Vamos!" or "Forza!" remaining from another memorable night session at the U.S. Open, when, for the first time in more than 10 years, Rafael Nadal lost a match after winning the first two sets.

Donald Young waged a brave war and eventually managed to defeat Gilles Simon despite trailing him by two sets.

David Ferrer recovered from a sluggish start to down American qualifier Donald Young 6-7 (5/7), 6-3, 6-1.

Young India Davis Cupper Yuki Bhambri stumbled at the first step of the ATP China Open qualifiers, losing in straight sets to Donald Young, here.

Roger Federer began his campaign to win a record sixth US Open with a comfortable 6-3, 6-2, 6-4 victory on Monday over America's Donald Young, whose season of under-achievement hit another low.

Jurgen Melzer of Austria and Paul-Henri Mathieu of France both won in straight sets to reach the second round of the Monte Carlo Masters on Monday.

Top-seeded John Isner beat fellow American Donald Young 7-6 (3), 6-4 on Thursday to move to the quarterfinals of Regions Morgan Keegan Championships.

Fourth-ranked Andy Murray claimed his 19th career title in beating American Donald Young 6-2, 6-0 in the final of the Thailand Open at the Impact Arena in Muang Thong Thani on Sunday.

Andy Murray will have the experience edge when the top seed faces untested Donald Young in Sunday's final of the ATP Thailand Open.