The Seattle Mariners are set for an action-packed homestand from April 26 to May 1, featuring matchups against the Arizona Diamondbacks and the Atlanta Braves. Here’s what fans can expect: Friday, April 26 vs. Diamondbacks (6:40 p.m.) Saturday, April 27 vs. Diamondbacks (6:40 p.m.) Sunday, April 28 vs. Diamondbacks (1:10 p.m.) These themed nights and…