Graveman has been borderline magical for the Mariners thus far with 16 2/3 scoreless innings across 14 appearances. The 30-year-old former starter has been one of the better stories of the young season, if a tad under-the-radar. He has stepped into the closer role after a strong showing in high-leverage opportunities last season put him in competition for the role. He has five saves thus far, tied for the team lead with Rafael Montero. No specific injury has been listed for Graveman.
The 26-year-old Mills has made six appearances for the Mariners this season, the first of his big-league career. Mills has allowed eight earned runs on nine hits and four walks while striking out five. Despite his early struggles, the former Gonzaga stand-out profiles as a potential high-leverage arm out the bullpen.