Hours before the Stanley Cup finals began, NHL commissioner Gary Bettman proclaimed that concussions are down across the league and there are numbers to back him up, according to an ESPN.com report.

That does not mean the league has figured out how to prevent head injuries among its players. 

According to data from STATS provided to The Associated Press, there were 53 concussions during the regular season, a sharp decline from the 78 reported during the league's last full season two years ago.