David Robertson struck out three over a scoreless ninth inning Tuesday against the Mariners to earn his 15th save of the season. He also walked a batter. Dellin Betances gave up a run in front of him, so you can add a bit more cushion to Robertson's hold on the closer's gig. Robertson is 15-for-17 in save opportunities to go with a 3.68 ERA and 1.14 WHIP this year.