Track and Field's John deRivera and Softball's Juliana Fekete were named WPI Student-Athletes of the Week. deRivera burst onto the collegiate track and field scene by winning the javelin at the Coast Guard Invitational on Saturday while Fekete assured the Engineers a “grand” opening in its initial game on its new Rooftop Field as she belted a tie-breaking grand slam to right center field in WPI’s 9-4 victory over defending champion Springfield.