The Astros score four unanswered runs en route to defeating the Mariners 7-5.
Valbuena hits two HR in Houston's 7-5 victory over Seattle
The Mariners defeated the Rangers 3-1 on Saturday.
The Seattle Mariners haven't hit a grand slam since 2013.
The Seattle pitcher looks to improve after facing some of the toughest competition
Tristan H. Cockcroft and Derek Carty will get you ready for daily fantasy baseball by offering advice and answering your questions at 6:15 p.m. ET.
Rangers closer entered the game with a 27-inning scoreless streak against the Mariners, but he blew the save opportunity.
Sunday's best performances in baseball included the walk-off heroics of Seattle's Nelson Cruz.
The Mariners slugger has a different means of production than last season.
Seattle scored six unanswered runs in the final three innings, capped off by a Nelson Cruz walk-off single, to win 11-10.
Cruz drives in 5 runs as Seattle beats Texas 11-10
Nelson Cruz had his eighth home run of the season on Sunday against the Texas Rangers.
James Paxton will make his third career start against the Rangers on Sunday.
The Seattle Mariners have yet to allow a home run this season.
Hernandez strikes out 12 as Seattle beats Texas 3-1
Seattle's ace heads back to the mound to face Texas
The Mariners bats were unable to get into a rhythm at home
Gallardo, Rangers relievers shut down Mariners in 3-1 win
AL West teams stumbling out of the gate
Nelson Cruz has had six home runs through 10 games twice in his career
A preseason favorite pick to win the American League, should the Mariners' slow start in both pitching and hitting be a major concern?
Dodgers sweep Mariners with 5-2 win, Cruz homers in fifth straight game
Alfredo Simon of the Detroit Tigers leads tonight's list of the top performances.
A look at some of the issues that have plagued the Seattle Mariners during a 3-6 start to the 2015 baseball season
Dodgers jump out to an early lead and beat the Mariners on a day when baseball celebrated Jackie Robinson
Mariners vs Astros
Safeco Field - Wed 4/22