Walker (hamstring) was placed on IR by the Jaguars ahead of Sunday's game against the Colts, John Oehser of the Jaguars' official site reports.

EDGE Analysis

Walker was already ruled out for the contest, so this move was just a formality that allowed the Jaguars to add running back Jeremy McNichols from the practice squad. The rookie receiver finishes the season with a modest two catches for 15 yards.

Walker (hamstring) has been ruled out for Sunday's game against the Colts.

EDGE Analysis

Walker will miss the final game of the season after picking up the hamstring injury this week. Dede Westbrook could work as the Jaguars' return man Week 17.

Walker (hamstring) is listed as a non-participant on Thursday's expected practice report.

EDGE Analysis

Walker serves the Jaguars as a key contributor on special-teams and a depth wideout. With DJ Chark (ankle) also nursing an injury, Jacksonville could be forced to rely on a new kick returner if Walker were forced to miss any time.

Walker returned two kickoffs for 40 yards and two punts for eight yards in Sunday's loss to the Texans.

EDGE Analysis

Walker was promoted from the practice squad Saturday and immediate stepped in as Jacksonville's top return man in his NFL debut. The undrafted rookie out of Boston College exclusively played special teams and would likely need multiple injuries in the receiving corps to receive involvement in the offense.

Walker was promoted to the Jaguars' active roster Saturday, Michael DiRocco of ESPN.com reports.

EDGE Analysis

Adding Walker to the active roster indicates Dede Westbrook (shoulder/neck) may not be on track to play in Sunday's matchup with the Texans in London. Still, the undrafted rookie is just expected to provide depth at wide receiver and potentially help contribute on special teams in his possible NFL debut.