The 21 - year old De la Rosa has the ability to be counted among the Yankees best pitching prospects , in spite of his rough day .
De la Rosa has struck out almost 11 batters per 9 innings pitched .
The 21 - year old De la Rosa has the ability to be counted among the Yankees best pitching prospects , in spite of his rough day , and he has struck out almost 11 batters per 9 innings pitched .