Bryan Stow showing significant improvements

This undated image provided Tuesday April 5, 2011 by John Stow shows Bryan Stow holding his 12-year-old son and 8-year-old daughter.

August 15, 2011 11:26:21 AM PDT
Doctors at San Francisco General say injured Giants fan Bryan Stow is showing significant improvements in his long road to recovery. They say his neurological exams are much better and his ability to follow commands and interact with family has greatly increased.

Stow remains in serious condition. He suffered a severe brain injury after he was beaten outside of Dodger Stadium in Los Angeles on Opening Day.

Two men, Marvin Norwood and Louie Sanchez have pleaded not guilty to felony charges of assault, battery and mayhem.