Tosen Stardom won't race again during the Melbourne Spring Carnival but connections are hopeful he may return to the racetrack before the end of the year.

A leg infection sustained after a float incident on his way to Sydney for the George Main Stakes has plagued Darren Weir's Japanese import in recent weeks.

The Cox Plate was signalled as an early spring target for Tosen Stardom but that was put on hold and the 1600m Group 1 race at Flemington on Derby Day considered a fall back.

"We simply ran out of time with him and have decided just to concentrate on getting him right," said Australian Bloodstock's Jamie Lovett.

"That doesn't mean he is just going to the paddock, it just means he won't run during the rest of the Melbourne Spring Carnival.

"It will all depend on how it takes to get on top of the infection but we could possibly look at Perth or possibly head to Sydney for the Villiers Stakes."