It's been a bad week for West Australian horses.

Star galloper Marasco has not responded as well as expected to an injured leg and his spring carnival is over.

The Fred Kersley-trained gelding cut his near fore leg getting off the plane in Melbourne and was forced to miss the Manikato Stakes.

It was hoped he would recover in time for this weekend's Group 1 Sir Rupert Clarke Stakes but the swelling hasn't subsided and connections have aborted his spring campaign.

Marasco will head home on the first available flight and is likely to have a let-up before returning for the Ascot Summer carnival.

Over in the west, another top galloper El Presidente has suffered an injury and has been retired.

The gelding didn't trial as well as expected last Saturday and after trackwork on Monday trainer Bruce Watkins noticed a suspect tendon.

He was taken to the vet and his worst fears confirmed with a bowed tendon.

Connections have decided to immediately retire the gelding, a winner of 10 of his 14 starts and over $1 million in prizemoney including the group 1 Railway Stakes.

Back in Victoria, the Daniel Morton-trained Scenic Blast is also out for the spring after a throat operation, scheduled for today.

The gelding resumed with an impressive win at Caulfield at his first run of the spring before finishing near last in the Memsie Stakes.