Amid the NFL's domestic violence scandals, Gary Bettman says the NHL has been proactive about off-ice conduct. 

Speaking at The Canadian Club of Toronto, the NHL commissioner did not specifically address football's problems but said hockey has tried to stay ahead of similar issues by educating players. Bettman added that sports can be a "vehicle for positive social change."

Sabres owner Terry Pegula is on the verge of buying the NFL Buffalo Bills, league sources have told ESPN NFL Insider Adam Schefter and ESPN Senior Analyst Chris Mortensen.

The process is said to be "moving quick," according to sources, and the Buffalo News has reported a decision could happen by Wednesday.