With Thursday night’s news that Fernando Rodney had agreed to a two-year, $14 million deal with the Mariners, the expected — that the Orioles would look internally to fill their closer role — became a foregone conclusion. While Baltimore had some interest in Rodney, who was the top remaining available closer, the club’s priority is on upgrading the rotation, and manager Buck Showalter will likely call on right-hander Tommy Hunter for the ninth inning this season.