Clint Frazier makes case to stay with his glove, bat and mouth

Clint Frazier is hoping he has done enough to stick around a little longer. Aaron Boone threw him a test Thursday by batting him leadoff and sticking him in center field — both major-league firsts — and Frazier came through, going 2-for-4 with a run as the Yankees finished off a sweep of the Mariners,…