The Louisville, Kentucky based company on Friday repeated its 2009 and 2010 earnings growth forecasts, but warned that a "difficult consumer environment" would make it hard to increase sales at its outlets that have been open for a least a year. The company said it expected fourth quarter same restaurant sales to fall 3 percent in mainland China, to fall 1 percent in its other international markets, and to decline 8 percent in the United States, where Yum competes with chains like McDonald's Corp and Domino's Pizza Inc. The update on same store sales trends "will come as a modest disappointment to investors, especially as trends in China appear to have decelerated further, and the stock is likely to come under modest pressure," Bernstein Research analyst Sara Senatore said in a client note. Yum gets more than half its operating profit from China and other overseas businesses, and investors expect most of its future growth to come from those markets, where the company is rapidly building restaurants. "Reinvigorated discounting activity by McDonald's" likely weighed on results from China, Janney Capital Markets analyst Mark Kalinowski said in a note.