Concentration a struggle for Agassi; mother faces cancer.(Sun-Sentinel, South Florida)

NEW YORK _His mother diagnosed with breast cancer, Andre Agassi goes back on court Thursday afternoon at the U.S. Open, once again trying to balance his job against his concern for his mother's health.

"It has been a difficult year in many respects with my sister having breast cancer and my mom was diagnosed with it just a month ago," Agassi said in an interview.

"It hasn't been easy, but in many ways it has gotten the family stronger and close. And it has given me the perspective that unfortunately sometimes only certain tragedies can bring."

Agassi did not say whether his mother, diagnosed nearly a month ago, was receiving treatment or whether she …