Rugby league's bid to crack into the U.S. sports market returned to Las Vegas on Saturday with its mission to convert Americans to this rugged brand of football drawing almost 50,000 fans to Allegiant stadium. It's the third consecutive year Australia's National Rugby League has showcased the gritty sport in the entertainment capital. How many locals showed up among the thousands of traveling fans from Australia and England on a day that saw three matches was not immediately clear, but the showcase delivered on the entertainment stakes capped by a cliffhanger between two historic rivals.