Australia shares likely to sink further on China worries

SYDNEY, Aug 25 (Reuters) - Australian shares are likely to open sharply lower on Tuesday as a selloff in global equities and commodities worsened amid growing anxiety about a slowdown in China's economy. The Shanghai Composite plunged 9 percent on Monday, while Wall Street tumbled almost 4 percent before recovering to close down 2.5 percent in a volatile session that confirmed the S&P500 was formally in a correction. Australian share price index futures recorded a 181.0 point fall, a 2