tweet: Jacob deGrom has increased his changeup usage in the month of September.  In six starts in August, deGrom utilized his changeup 5.6% of the time. In September, deGrom is throwing it 12.2% of the time with a 65.5 whiff%.  @Metsmerized #Mets #LGM  https://t.co/lgHYRCuXtv