PERSIAN SONG (3) improved last time out, finishing 2 lengths from the winner in second at the end of 1400m at San Isidro. Stepping up a level this time but on her best form she is capable of testing her rivals. SHERRAZADE (7) is usually thereabouts but finds it hard to win, with only one victory from 17 starts. Again tasted defeat last start when sixth over 1600m at San Isidro, beaten 9 lengths. Placed to advantage so expect a big run. PALMERA ISLAND (6) is a distance specialist who finished out of the money two starts back then was beaten 14 lengths when fifth over 1600m at Rosario two weeks ago. Steps up a level but she is up to the task. VENUCA (1) was beaten 17 lengths into fifth over 1800m at this track at her latest appearance. Suitably placed so can turn things around.