Update 16.15 local time: Court of Appeal defers hearing until Thursday morning

Update 13.00 local time: Sauber will take its case to the Court of Appeal, hearing due later this afternoon

Giedo van der Garde has suceeded in his legal challenge against Sauber over its decision not to give him an F1 drive for 2015.

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Van der Garde took Sauber to court after claiming it reneged on a deal to promote him from reserve to full-time driver for 2015, with the Swiss team opting for Felipe Nasr and Marcus Ericsson instead.

Now, just two days before the start of the 2015 season, the Supreme Court has ruled in favour of van der Garde, though the full ruling is yet to be released.

The ruling stands to mean that van der Garde is entitled to race at Albert Park this weekend, with the man himself insisting he is prepared to jump in the car at this late stage.

"I'm very fit and very strong," he said outside the court. "I'm looking forward to going back to the team and we'll work hard to do our best for this weekend.

"I still have a very good relation with the team. I'm looking forward to racing this weekend."

Following the ruling, Sauber immediately launched its appeal, with the Court of Appeal convening in the afternoon to hear the case. However, judges opted to delay the conclusion of the hearing until Thursday morning (local), just one day before track action is due to start.

Should van der Garde go on to race, it is unclear which driver he would be replacing. Both Ericsson and Nasr are known to bring significant funding with them and the loss of one could prove hugely damaging for what is one of the lesser-funded teams on the F1 grid.

Furthermore, the ruling means Sauber could subsequently face further action from whichever driver is spurned, while van der Garde, even if he doesn't drive, could be in line for significant damages for breach of contract.