Tyler Hamilton, still trying to clear his name after receiving a two-year suspension for blood-doping, has a Court of Arbitration for Sport (CAS) hearing in Denver on Tuesday.

After closing submissions are made in Hamilton's appeal of a U.S. Anti-Doping Agency (USADA) ruling, the panel will begin final deliberations and render a decision, a process that could last a few weeks.

Hamilton tested positive for illicit blood transfusions during the Vuelta a España in September of 2004, just weeks after winning Olympic gold. Last April, USADA imposed a two-year suspension. Hamilton wants CAS to overturn that ban.

The 34-year-old American had apparently tested positive for blood doping after winning Athens gold, but the B sample for that test was destroyed when it was frozen.

The International Olympic Committee ruled it could not strip Hamilton of his medal without a B sample as a back-up test.

Hamilton and then-teammate Santiago Perez were both positive under the protocols of a new test designed to detect homologous blood-doping, the use of another person’s red blood cells to boost endurance.

Hamilton has argued the test used to determine blood doping was not reliable and was as-yet-unproven in an anti-doping context.

Hamilton, fourth in the 2003 Tour de France, despite riding most of the race with a broken collarbone, wrote in a posting on his website that "out of respect for the process and the work that is ongoing, I’ve agreed not to discuss my case until the proceeding is finalized."

In the posting, Hamilton touched upon the length of time since the doping positive, saying the delays in a final resolution have made him resolute.

"The longer my case drags out, the more determined I become to make something good come of it," Hamilton wrote. "If I had known at the onset that this process would take more than sixteen months to work through, I may have been a little more emotional about my situation during the early going.

"Even though the time line has stretched out in increment after increment, I do know that at a certain point, these circumstances will come to an end.

"All the craziness... has made me stronger, more thoughtful and more aware of the reality around me. I have a heightened appreciation for the people, places and experiences that are meaningful to me."