Singapore’s two glitzy casinos are fighting for a shrinking pool of high rolling players as China’s corruption crackdown and economic slowdown reduce the number of VIPs at their tables, and the battle is starting to turn ugly. Gaming mogul Sheldon Adelson, whose Las Vegas Sands (LVS.N) runs the Marina Bay Sands resort, has accused rival Genting Singapore’s (GENS.SI) Resorts World Sentosa of relying on overly generous incentives and credit to entice big money players.