Luis Severino made his first career MLB start on August 5, 2015 when the Yankees hosted the Boston Red Sox. He was the tough-luck loser that day, with the Yanks falling to their rivals 2-1. Severino pitched great, giving up two runs (one earned) on two hits, while striking out seven and walking none over five innings. The 21-year old rookie relied heavily on his four-seam fastball and slider, while using the two-seam fastball, cutter, and changeup more sparingly. His over-reliance on the fastball and under-utilization of the changeup would prove to be problematic for the young righty moving forward.