Marcus Jones hasn't scored a touchdown in three years. Is it time for the Patriots to dust him off to give the offense a saprk?

The Patriots’ other projected starting cornerback, Carlton Davis, has yet to fully participate in a practice since camp began. The nature and severity of Davis’ injury were unclear as of Wednesday. Before one practice last week, Vrabel said the offseason signing would be sidelined for a “maintenance day.”

It was Celtics coach Joe Mazzulla, who stopped by to spend some time on the sidelines. Mazzulla has been a guest at previous Patriots practices under Bill Belichick and Jerod Mayo. He grew up a Patriots fan in nearby Johnston, RI and enjoys learning from other coaches.