Cubs look to feast on Pirates yet again

The Chicago Cubs haven't had much reason to smile this season, although more than a few of their rare grins have come at the expense of Pittsburgh Pirates.

The Cubs (67-89) aim to torment the cellar-dwelling Pirates (58-98) a bit more Tuesday when they open a three-game series in Pittsburgh. Chicago has won seven in a row against its National League Central rivals and 12 of the 16 meetings thus far this season.

The smil