Please pray for Madeleine Ruff.

From the AP via ESPN.com:

Buffalo Sabres coach Lindy Ruff could miss a few games and practices after his 11-year-old daughter was diagnosed with having an unidentified mass on her brain.

Ruff first informed The Buffalo News of the diagnosis in a story published Sunday. He said he is awaiting further tests on his daughter Madeleine after the mass, about the size of a quarter, was discovered Friday during tests at Buffalo Women and Children's Hospital.

Sabres spokesman Michael Gilbert confirmed the news on Sunday, adding that the coach has consulted with team management and owner B. Thomas Golisano....

Madeleine, who has a twin brother Brian, two weeks ago complained of experiencing headaches, which became more severe last week, Ruff said. The coach and his wife Gaye have four children, the twins being their youngest.

"She's very positive about the whole thing," Ruff was quoted as saying. "It's incredible. Every child you have is different. They deal with things differently. She's a special child."