GREEN BAY, Wis. (AP) — Mason Crosby smiled as he left the field. It was quite the week for the Green Bay Packers' veteran kicker. Crosby hit four field goals, including the winner from 27 yards as time expired to lift the Packers past the San Francisco 49ers 33-30 on Monday night. "This week was a grind, it was one of the tougher weeks of my career," Crosby said. It began with rare questions about Crosby's reliability following four missed field goals and an extra-point try in a 31-23 loss in Detroit last week. It ended with a perfect night against the 49ers.