WOLVERINESBoston College 4, Michigan 0Michigan players gather after a loss to Boston College in a Frozen Four semifinal in the men's NCAA college hockey tournament in St. Paul, Minn.Abbie Parr, APBoston College goaltender Jacob Fowler, front, defends against a Michigan shot during the first period of a semifinal in the Frozen Four on Thursdy in St. Paul, Minn.Abbie Parr, APMichigan forward Mark Estapa, left, skates with the puck during the first period.Abbie Parr, APBoston College forward Gabe Perreault, left, and Michigan forward Frank Nazar III (91) vie for the puck during the first period.Abbie Parr, APMichigan forward Frank Nazar III (91) tires to control the puck during the first period.Abbie Parr, APBoston College forward Will Smith (6) is congratulated for his goal against Michigan during the first period.Abbie Parr, APMichigan goaltender Jake Barczewski looks at the video board after a goal by Boston College forward Will Smith during the second period.Abbie Parr, APBoston College forward Jamie Armstrong, front left, and Michigan defenseman Marshall Warren (77) compete for the puck during the second period.Abbie Parr, AP