Garver is out of the lineup for Sunday's game against the Phillies.
After going 0-for-16 over a stretch of four starts from July 13 through July 22, Garver went 3-for-3 with two walks July 26 against the White Sox, only to endure another 0-for-16 showing over a four-game stretch. Garver had started in three of the Mariners' previous four games, but his ongoing slump will likely begin to cost him more playing time.