Raleigh became the first Seattle player to hit four home runs over two consecutive games since Kenji Johjima on June 24-27, 2006.
The Mariners will look to maintain momentum after snapping the Phillies’ nine-game winning streak.
Julio Rodríguez launched a three-run homer in the first and Raleigh added a two-run drive to cap a five-run inning.
The Mariners are coming off an up-and-down series against the Cubs that featured two walk-off wins and a blowout loss.
Seahawks wide receiver Jake Bobo was carted off the field Friday from Seattle’s joint practice with the Titans and was placed on injured reserve Saturday.
Seattle (62-69) remained three games behind Houston in the AL West.
The Seahawks could be without a fan-favorite receiver for the entire season.
The Mariners are reportedly calling up the top pitching prospect in baseball to start in Seattle on Saturday.
Seattle improved to 4-4 in a nine-game trip that concludes Thursday.
The Seahawks have reportedly agreed to a one-year deal with former Cowboys Pro Bowler Trevon Diggs.