Pennsylvania gamblers welcomed online sports betting's legalization in the state, wagering millions of dollars in its first full month of availability - and football season is still over a month away. Online sports betting, made legal in Pennsylvania in May, has already seen massive growth. Players at Sugarhouse Casino wagered more than $18 million in online sports wagering last month, bringing in $1.3 million in revenue for the Philadelphia casino. Parx Casino picked up more than $300,000...