Hugh Bowman will be the new rider for Black Piranha on Saturday but Nash Rawiller still has first call on the prized spring mount."Basically Nash can ride the horse whenever he wants to and whenever he is available," trainer Con Karakatsanis said."I've left it to Nash. He is our first preference and he was booked to ride him on Saturday before he was suspended."Rawiller will sit out the next two Saturday meetings, including this week's Theo Marks Stakes fixture at Rosehill, because of a ban hand

Hugh Bowman will be the new rider for Black Piranha on Saturday but Nash Rawiller still has first call on the prized spring mount.

"Basically Nash can ride the horse whenever he wants to and whenever he is available," trainer Con Karakatsanis said.

"I've left it to Nash. He is our first preference and he was booked to ride him on Saturday before he was suspended."

Rawiller will sit out the next two Saturday meetings, including this week's Theo Marks Stakes fixture at Rosehill, because of a ban handed out over his Golden Rose ride on Squamosa.

The heavyweight rider linked with Black Piranha for the first time when the accomplished sprinter-miler won his second Stradbroke Handicap during the Brisbane winter carnival.

But whether he would have been able to ride Black Piranha if he was available on Saturday may have been left to the handicapper because trainer Gai Waterhouse has nominated glamour mare More Joyous - a regular Rawiller mount - for the Theo Marks.

Karakatsanis said he was reluctant to commit Black Piranha to a definite spring campaign.

Aside from a weight-for-age start in the George Main Stakes at Randwick on September 25, Karakatsanis is keeping options open.

"I've got a question mark about a start in the Epsom (Handicap) and the Emirates Stakes," he said.

"After that we'll probably look at Perth. He's about 85 to 90 per cent certain to go over for the Railway Stakes and the Kingston Town Classic."

Black Piranha has won two trials in preparation for his return but Karakatsanis said the seven-year-old was short of being fully wound-up.

"I'd say he is about 85 per cent fitness-wise," he said. "He's needed the two trials going first-up into a 1400 metre race.

"The thing was I am most happy with is the horse's state of mind.

"Nash got off him after the second trial and said the horse was mentally switched on and ready to go again.

"That's important in these older horses."

Black Piranha is one of seven Group One winners among the 14 Theo Marks entries.

Nominations for the Theo Marks, the Kingston Town Stakes and the Heritage Stakes have been extended until Tuesday morning.