O'Connell was estimated as a full participant in Tuesday's walk-through practice, Tashan Reed of The Athletic reports.
The wheels were set in motion for O'Connell to return from a four-game absence when Las Vegas designated him to return from injured reserve Monday, and the second-year quarterback now appears likely to start Friday against Kansas City after opening Week 13 prep as a full participant. Tom Pelissero of NFL Network reported earlier Tuesday that O'Connell took first-team reps during a walkthrough Monday, suggesting that the Purdue product will be the Raiders' preferred option ahead of Desmond Ridder with Gardner Minshew (collarbone) out for the season. O'Connell will need to be activated off IR before he can be confirmed for the Week 13 start, but everything points to that transaction taking place.