A late and slightly unlikely arrival on the two-year-old scene is being touted as a possible Golden Slipper chance by trainer John Sadler.

Go Again, a debut winner at Sandown on Wednesday, will step up from modest midweek company to have her next start in the Magic Night Stakes (1200m) at Rosehill.

Connections will then consider paying the $150,000 late entry fee for the Slipper.

Sadler's optimism stems mainly from Go Again's narrow win in Wednesday's Dash For Cash in which her time of 50.12 seconds smashed the 900m track record by more than a second.

"She's one of our best two-year-olds and we've got a good bunch," Sadler said.

Go Again races in the colours of champion mare Mosheen and is owned by local identity Phil Sly and Katsumi Yoshida, a member of Japan's leading racing family and the proprietor of the famous Northern Farm.

Both Sly and Yoshida have shares in Mosheen who arrived at Northern Farm last month to be served by world champion stallion Deep Impact.

Go Again ($3.50) showed speed and tenacity to wear down another first starter Se Sauver to score by a short head.

The pair cleared out from the rest of the field headed by Zeffiretta ($3.60) who finished six lengths away in third.

The Sandown meeting also produced a potential Derby hope from the rejuvenated David Hayes stable.

Gerontius' win in the Sportingbet Handicap (1800m) earned him consideration for the country's premier classic, although Hayes has a fallback option.

"If I was to be optimistic I would say the Australian Derby," Hayes said.

"But it may be more realistic to have a crack at the South Australian Derby."

Gerontius ($6.50) showed superior staying ability to score by a length from Kings Palace ($13) with the favourite Harveys True Heart ($3.50) a neck further away in third.

After a couple of lean seasons following his move from South Australia to Euroa in central Victoria, Hayes has showed lately he still has what it took to win seven Melbourne premierships with 92 winners for the season on all tracks and 26 in Melbourne.