1.   He played poorly the next two games before doctors diagnosed a concussion.

2.   Adults often use unreliable methods to diagnose concussions, the report says.

3.   All the trainers diagnosed concussion by using the same classification system.

4.   Steinberg said the concussion was diagnosed as mild, like the one Aikman suffered in the season opener three months earlier.

5.   However, after a hospital brain scan, doctors diagnosed only concussion, although he was detained overnight and will not bat again in the innings.