Less than a month before the start of the regular season, there's cause for concern about Jimmy Garoppolo's most valuable target.
Gronkowski walked off under his own power, but was moving slowly as he left, according to Boston.com.
Gronkowski's value to the Patriots' offense -- a unit that will be led by Garoppolo for the first four weeks of the regular season -- is unquestioned, and the importance of a reliable tight end for an inexperienced quarterback cannot be emphasized enough. The hope for all parties involved is that it's nothing more than a scare. Until then, we wait.