Andrej Meszaros participated in his first full Bruins' practice Friday. That said, there is a good chance he will be a healthy scratch again Saturday against the Lightning as Boston coach Claude Julien seemed very pleased with the six rearguards he dressed for Thursday's 3-0 win over Washington. Corey Potter, who was also recently added to the Bruins' roster, may also sit in the press box. "It's pretty apparent to me now that there is competition back there," Julien said. "We've got to give those guys an opportunity to feel their way into this team. There is an opportunity for us to get to know them and them to get to know us. That's where we are right now". We would keep Mezaros on reserve until he plays in a game.