Jackson (toe) returned to practice Tuesday, Jamison Hensley of ESPN.com reports.
Jackson was estimated as a DNP on Monday's practice report, but he doesn't appear to be in serious danger of missing Thursday night's game against the Bengals. The QB is looking to bust a three-game slump -- he's averaged 174 passing yards per game with a 1:2 TD:INT mark over the last three weeks -- in a juicy matchup against Cincinnati's league-worst defense.