From time to time throughout the offseason, reports have emerged that Patriots tight end Rob Gronkowski will be ready to go (or words to that effect) on Week One after suffering a torn ACL late in the 2013 regular season. Given his slow return from a broken arm last season, that seemed overly optimistic.

Gronkowski’s fairly slow start to camp has made it seem like much less than a sure thing.

Per a source with knowledge of the situation, Gronkowski’s anticipated Week One availability sits at 50-50, with perhaps a shade above the even-money proposition.