Njoku (knee) has been ruled out for Sunday's game against the Texans, Jake Trotter of ESPN.com reports.
With Njoku unavailable, Harrison Bryant and Pharaoh Brown are slated to lead the Browns' tight end corps in Week 13, with Bryant a candidate to log enough volume Sunday to merit fantasy lineup consideration. Njoku will now target a potential return to action Dec. 11 against the Bengals.