Spears (ankle) was designated to return from injured reserve Wednesday, Jim Wyatt of the Titans' official site reports.
The designation opens up a three-week window for Spears, who remains on IR, to practice with the team. In the meantime, he won't count against the team's 53-man roster, but barring any setbacks, Spears -- who is eligible to return to practice Wednesday -- is moving toward bolstering the Titans backfield, which has been led by Tony Pollard through the first four weeks of the season.