Alva Review-Courier -

LONDON (AP) — Spitting into a hand-held device could soon be a way of diagnosing concussions in sports.

For the upcoming season in English rugby, players in the top two leagues will provide saliva samples as part of major study into concussions.

The study is being led by the University of Birmingham, whose researchers say they have identified molecules that can be found in saliva and act as biomarkers to indicate whether the brain has been injured.

Rugby players will give a baseline saliva sample before the season starts and provide another sample beside the field of play if they suffer a conf...