Osvaldo Alonso

Seattle Sounders' Osvaldo Alonso to throw first pitch at Mariners game on May 1

After you catch the Seattle Sounders' match on Saturday afternoon, make plans to spend your Sunday with a Sounder at Safeco Field.


Seattle Sounders midfielder Osvaldo Alonso is set to throw the first pitch at the Seattle Mariners' game on Sunday afternoon. Alonso, who attended an M's game last fall after his father traveled to the United States for the first time, is an avid baseball fan and joins a group of Sounders players and staff members who have had the honor of throwing the first pitch at Safeco.


The Mariners wrap up their homestand against defending champions the Kansas City Royals on Sunday at 1:10 p.m. and tickets are still available.

2025 Season Memberships

2025 Season Memberships

Join Sounders FC for an unforgettable year. Unlock exclusive perks and be part of the action as we enter a new era. 2025 Season Memberships are on sale now!

2025 FIFA Club World Cup

2025 FIFA Club World Cup

The biggest club soccer event in history is coming to Seattle. And we're playing in it.

2025 Flex Memberships

2025 Flex Memberships

Your matches. Your way. With a Sounders FC Flex Membership you select which matches you want in the seats (or suites!) of your choosing. Enjoy the view from our elevated Club seats for one match, and then for your next one sit close pitch to catch all the action - all with preferred member pricing.