Gregory Santos back on IL; Julio Rodriguez making steady progress

The Mariners added two relievers to their bullpen on Friday but lost another to the injured list. JT Chargois, in his second stint with the Mariners, was activated to the roster before Friday’s series opener against the Philadelphia Phillies. The Mariners also claimed Texas right-hander Jonathan Hernandez off waivers. Hernandez, 28, has appeared in 26 games (one start) with the Rangers this season, going 3-1 with a 5.05 ERA, 26 walks and 36 strikeouts in 41 innings. He was designated for assignment by Texas on July 30. In a corresponding...