The Mariners may be without their best starter and hottest hitter for up to four weeks.
Right-hander Felix Hernandez and right fielder Mitch Haniger are expected to miss 3-4 weeks, according to the Seattle Times. Both players went on the 10-day disabled list Wednesday.
Hernandez left Tuesday's start against the Tigers after two innings. Mariners manager Scott Servais said Wednesday Hernandez termed the injury a "dead arm." The technical diagnosis is bursitis in his right shoulder. The 30-year-old Hernandez, a six-time All-Star and former Cy Young Award winner, is off to a rocky start, with a 4.73 ERA and 1.57 WHIP in five outings.
Haniger has been diagnosed with a Grade 2 strain of his right oblique, which he injured during an at-bat in Tuesday's game. The rookie has been a pleasant surprise for Seattle, with four home runs, 16 RBIs and a 1.042 OPS to start the season.