Las Vegas hockey fans finally got the opportunity on Tuesday to put their money where their hockey team might be with the launch of a trial season ticket drive that supporters hope will lead to the expansion of the NHL into the city.

But NHL commissioner Gary Bettman, who attended a news conference at the MGM Grand Casino to kick off the drive, insisted that the NHL hasn't made any commitment to anyone regarding becoming the first major professional sports league to venture into the gambling and tourist mecca.

"We're not in the expansion process and I need to keep making that clear,'' Bettman said.