Chicago Blackhawks' Patrick Sharp (10) controls the puck against Boston Bruins' Jarome Iginla (12) during the first period of an NHL hockey game in Chicago, Sunday, Jan. 19, 2014. (AP Photo/Nam Y. Huh)

Chicago Blackhawks' Patrick Sharp (10) controls the puck against Boston Bruins' Jarome Iginla (12) during the first period of an NHL hockey game in Chicago, Sunday, Jan. 19, 2014. (AP Photo/Nam Y. Huh)