Jaguars call up WR Walker, possibly to fill in for Westbrook

LONDON (AP) - The Jacksonville Jaguars promoted rookie receiver Michael Walker to the active roster Saturday, an indication Dede Westbrook won't play against Houston in London.
 
   Westbrook was a limited participant in practice all week and was listed as questionable. He injured a shoulder last week against the New York Jets.
 
   The Jaguars (4-4) had only three other receivers on the roster -- DJ Chark, Keelan Cole and Chris Conley -- after putting Marqise Lee on injured reserve with a season-ending shoulder injury.
 
   Westbrook has 32 catches for 383 yards and a touchdown this season.
 
   Walker has spent the entire season on Jacksonville's practice squad. If he plays against the Texans (5-3), he would make his NFL debut.