With the Cubs up 6-4 in the ninth inning of a game that could protect their slim hold on first place in the National League Central, Pirates pinch hitter Francisco Cervelli popped a pitch foul on the right side. First baseman Anthony Rizzo ran toward the stands and reached over the wall and around the screen trying to make the catch, only to have a fan sitting in the front row reach into Rizzo’s glove, it appeared, and make the catch instead.