Padres look to keep sinking Mariners' season Field Level Media Seattle Mariners left-hander Justus Sheffield has averaged just over five innings a start this season. When he made his only start against San Diego last season, he held the Padres to a run on six hits in six innings and earned the win. The ability of Sheffield to go moderately deep into gamescould be crucial for the visiting Mariners in the second game of a three-game series against the San Diego on Saturday night. On Friday night, Seattle starting pitcher Chris Flexen lasted only 1 2/3 innings, hours after the Mariners lost four relievers -- Robert Dugger, Anthony Misiewicz, Drew Steckenrider and Will Vest -- to the 10-day injured list due to Major League Baseball's COVID-19 protocol.