The Pirates are back home for a weekend series against the Chicago Cubs. The third place Pirates are eight and a half games behind the first place Cubs.  It will be Francisco Lirriano pitching for the Pirates.  Jake Arieata will pitch for the Cubs. The Pirates have won seven of their last eight.  At one point in early June, The Cubs were 27 games over 500. In their last 20-games, they are 7-13. Airtime for tonight’s game is  6:40 on WBVP-WMBA.