Kane had been out 21 games after breaking his collarbone Feb. 24 and was n't expected to be back in time for the first round .
Kane is a clutch - scoring hero in both of Chicago 's recent Stanley Cup wins .
Kane , a clutch - scoring hero in both of Chicago 's recent Stanley Cup wins , had been out 21 games after breaking his collarbone Feb. 24 and was n't expected to be back in time for the first round .