APPLETON, Wis. — Lawrence University drops the puck on the second half of the season this weekend when the Vikings face Concordia University Wisconsin in a home-and-home Northern Collegiate Hockey Association series. The Vikings travel to Mequon, Wis., for a 7 p.m. game Friday at the Ozaukee Ice Center, and Lawrence hosts Concordia at 7 p.m. Saturday at the Appleton Family Ice Center.