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.

Patriots star defensive back Christian Gonzalez won’t see the practice field at Gillette Stadium until at least early August as he recovers from a hamstring injury. Coach Mike Vrabel said on Wednesday that he doesn’t expect Gonzalez to be on the field for the rest of the week.