The US restaurants will extend Ramsay's partnership with Caesars Palace, the casino operator with which he already operates four outlets in the US.
Michael A. Leven, who is 74, has been the president and chief operating officer of Las Vegas Sands, the casino operator, since 2009.
Harrah's, the casino operator, is also struggling.
The casino operator Sheldon Adelson contributed a million dollars.
MGM Resorts, the casino operator, and Tenet Healthcare, the hospital chain, represent the worst credit available.
Harrah's, the casino operator, similarly uses loyalty programs and Cognos software to tailor incentives for gamblers.
The fund owns shares of Harrah's Entertainment, the casino operator that caters to the middle class.
The stakes for Aztar, the casino operator at the center of a protected bidding war, just got even higher.
In 2010, the casino operator withdrew its filing for an I.P.O. after prospective investors said the company was not worth what its owners claimed.
Leading the charge are consumer brands like Prada and Samsonite, plus the casino operator MGM China and the Hong Kong-based jeweler Chow Tai Fook.
The casino operator, which owns the Caesar's Palace and Harrah's brands, said Friday that it had withdrawn its initial offering, tersely citing "market conditions" in a public statement.
