SAS sniper Danny Nightingale was jailed last year for illegally possessing a gun, he said he had forgotten about.
Although he was later freed from jail, his conviction still stands, and today Danny will appear at the Court of Appeal in an attempt to clear his name.
Speaking to Daybreak, his wife Sally said: "I'm half expecting a retrial to be honest. If I think that way then it can't be so hard when it comes."
Thanking the public for their support, she added, "we still get letters, we still get messages on Facebook, through Twitter, and the support that's been going on leading up to this appeal has been massive as well. It really pushes us forward."
The Court of Appeal concluded in late November that Danny Nightingale's sentence was too harsh. Three appeal judges cut the term to 12 months, said it should be suspended, and ordered Sgt Nightingale's release.
Lawyers representing Sergeant Nightingale, 38, are today scheduled to try to quash the conviction at another Court of Appeal hearing in London.
Sergeant Danny Nightingale will try to clear his name at an appeal against his conviction today.
The SAS sniper was jailed for 18 months in November for illegally possessing a pistol, but released three weeks later after appealing his sentence.
At the time, Sgt Nightingale, from Crewe, Cheshire, vowed to clear his name.
His appeal will be heard at the Royal Courts of Justice in London.