Seattle Mariners vs. Kansas City Royals MLB Pick Prediction 9/17/2021 by Tony T.
Mariners at Royals—MLB free pick is Seattle Mariners -109. On the mound for Seattle is Chris Flexen. The righthander has allowed three earned runs or fewer in seven of his past eight starts. Brady Singer to counter for KC. Singer in his past start allowed six earned runs with five homers in 4 2/3rd innings. Royals pitching has allowed seven runs or greater in four of their past five. Mariners have won their past four at KC. Play Seattle -109.