No, I'm not particularly sporty <a href=" http://www.inacioepereira.com.br/avanafil-que-es/#silver ">avanafil coa</a> MELBOURNE/LONDON, Sept 12 (Reuters) - Bankers trying to movea mountain of mining assets for sale are being tested to thelimit by unreliable buyers, stubborn sellers and a widening gapbetween them that has already caused billions of dollars' worthof deals to be shelved.