Coach Jay Gruden said Friday that Roberts needs to decide whether to have season-ending surgery on his knee.
Hatcher has been dealing with a pinched nerve in his neck, while Thompson has a torn labrum in his left shoulder. If Thompson is unavailable, new running back Pierre Thomas would be active.
Another recent addition, Alex Smith, ''has got a chance to play a significant amount of time'' as the team's second tight end, Gruden said.
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