Sun Sentinel
National Football League
            === Calvin Johnson sits for second straight practice ===
 Detroit,  MI (Sports Network) - Detroit Lions wide receiver Calvin Johnson sat
 out  a second  straight practice Thursday with a lingering knee injury, though
 the All-Pro is still expected to play in this weekend's game at Jacksonville.
 Johnson  has battled  knee soreness throughout the season and has been limited
 to  just  80 yards on  six catches the  past two weeks, but  has yet to miss a
 contest.  The team has routinely scaled back his practice reps in order to get
 him ready for game action.
 The  NFL's  leader with 1,681  receiving yards in  2011, Johnson has managed a
 modest  41  receptions  totaling  638  yards with  just  one  touchdown  catch
 through Detroit's first seven outings this season.
 Also held out of Thursday's session for Detroit were safeties Louis Delmas and
 Amari Spievey and defensive end Cliff Avril.
 Delmas  left  Sunday's 28-24  victory  over  Seattle  with  an injury  to  his
 surgically repaired left knee, while Spievey is still battling a concussion he
 sustained in the Lions' Oct. 22 loss at Chicago. Avril did not participate due
 to a back problem that isn't believed to be serious.
 11/01 19:05:13 ET