We left for Dakar believe we can do great things but unfortunately Spike got hurt after a few stages and I had to retire due to a technical problem the clutch a defect never encountered previously in tests

Can you repeat this sentence, but add in punctuation?
We left for Dakar believe we can do great things, but unfortunately Spike got hurt after a few stages and I had to retire due to a technical problem the clutch, a defect never encountered previously in tests.