FOREX-Yen firms, Aussie slips on China growth worries and Wall St drop

SYDNEY/ TOKYO, Feb 2 (Reuters) - The yen briefly touched a two-week high versus the dollar on Monday, while commodity currencies were fragile as worries about the health of the Chinese economy added to unease following a selloff on Wall Street. "We believe that the likelihood of a Greek exit is now significantly higher than at any point in 2012, in view of the latest political events," analysts at Barclays (LSE: BARC.L - news) wrote in a note to clients.