"He has no fear," manager Terry Collins said. "This kid's not afraid of anything in any situation. He knows what he can do and he goes out and does it. He knows he can throw strikes. He knows he's got a weapon that's hard to hit, and he uses it."
That weapon is Gsellman's mid-90s sinker, which he used liberally throughout Saturday's outing. The right-hander also flashed multiple breaking balls and a changeup, saying afterward that "I'm not ready yet, but I'm almost there.