Nationals turn to rookie against Cubs

The Washington Nationals will go from one strong pitching performance to - if nothing else - a notable pitching development.

Jake Irvin will make his major league debut when he starts against the visiting Chicago Cubs on Wednesday night.

"He's stretched out to about 90 pitches," Nationals manager Davey Martinez said. "So we're going to give him an opportunity to come out here and start for us and see what he does and se