CHAPEL HILL — The two starting pitchers in the Chapel Hill Super Regional opener are like mirror images, other than one being much taller than the other. UNC’s 6–3 junior left-hander Shea Sprague (3–1, 3.76 ERA) immediately noticed it when he watched a video of 5–7 West Virginia senior left-hander Derek Clark (8–2, 2.82 ERA), calling it “pretty uncanny.”