Even after training with Yoda in the next film, he lost his duel with Vader in Cloud City. Obi-Wan wanted to end the fight as quickly as possible, so that Luke would have no reason to engage Vader.

Does Darth Vader appear in the 'Obi-Wan Kenobi' series? Darth Vader will appear in "Obi-Wan Kenobi," and Hayden Christensen returns to play the character. Christensen previously played Anakin ...