The District 11 championship weekend begins tomorrow night, and for the Central Catholic boys that means a chance to win a third straight championship at the AAA level.  But it won't be easy against a Becahi team playing some of its best basketball of the season.  That makes this game between two rivals even more exciting as we open the championship weekend.   For the Vikings, the road to the title round has included wins over Tamaqua and Salisbury.   Becahi is a team they've also beaten but earlier this year in the regular season, still at this time of year the Vikings know they have to be ready with their best effort.