ALLEN PARK — Kyle Van Noy, who had core muscle surgery on Thursday, was place on reserve/injured-designated for return on Tuesday.

The Detroit Lions rookie linebacker will be eligible to return to practice in six weeks and can be activated to play after eight weeks.

Van Noy was on the field watching the linebackers during individual practice drills Tuesday. 

To fill his place on the 53-man roster, the Lions re-signed defensive end Darryl Tapp.

Van Noy was not expected to start, but obviously this injury will set him back. Tahir Whitehead was named the starting strong-side linebacker on Monday.

Safeties James Ihedigbo and Don Carey did not participate in the practice today (Tuesday). Both were also out on Monday and neither played in the fourth preseason game.

Ihedigbo told the media late Monday that it was just rest for him and that he expects to play in the season opener on Monday against the Giants.

Veterans do get rest in Jim Caldwell’s system, but usually it’s for just a day here and there.

When reporters left after individual drills, the music was cranked up to simulate crowd noise.

The Lions open the season on Monday against the New York Giants at Ford Field. Kickoff is 7:10 p.m.

(Follow @PaulaPasche on Twitter. Order her book,  “100 Things Lions Fans Should Know & Do Before They Die’’ here. It’s also available at bookstores.)