By Mukala Kabongo NEFJ Staff LYNN — Michael Sherman set the tone early with a 92-yard kickoff return for a touchdown as No.8 St. Mary’s thumped No.9 Greater Lawrence 48-13 in the opening round of the D5 playoffs on Friday night. When the brackets came out on Sunday, a potential rematch between St. Mary’s and the top seed in D5 Shawsheen Tech was a real possibility and now it's come...