Seattle @ Arizona preview

Last Meeting ( Aug 25, 2018 ) Seattle 4, Arizona 3

No team has performed better in tight situations this season than the Seattle Mariners, who proved it again with yet another nail-biting, extra-inning victory over the Arizona Diamondbacks on Saturday. The Mariners attempt to pull off their second sweep in their last three road series Sunday, when they visit Arizona for the finale of their three-game set.

Kyle Seager's two-run double with two outs in the top of the ninth - Seattle's only hit in 12 at-bats with runners in scoring position - sent Saturday's game to extra innings before Denard Span clubbed his 10th home run of the season one frame later for a 4-3 triumph. The Mariners posted their major league-best 33rd one-run win and improved to 13-1 in extra-inning affairs, staying 5 1/2 games behind first-place Houston in the American League West and 4 1/2 games back of Oakland for the second wild card. The Diamondbacks fell back into a first-place tie atop the National League West with Colorado following their second straight defeat - only the second time this month they have dropped consecutive games. Nick Ahmed continued his recent torrid offensive pace with two hits Saturday and is batting .305 over his last 30 games.

TV: 4:10 p.m. ET, ROOT Northwest (Seattle), FS Arizona

PITCHING MATCHUP: Mariners RH Mike Leake (8-7, 3.90 ERA) vs. Diamondbacks RH Zack Greinke (12-8, 3.06)

Leake was scratched from his last scheduled start due to illness, but he was brilliant in a no-decision in his last trip to the mound on Aug. 15, when he fired eight scoreless innings at Oakland. The former eighth overall draft pick hasn't received much help from his offense this month, failing to earn a victory despite posting a 2.18 ERA . A.J. Pollock (6-for-12, home run) has thrived against Leake, who is 5-3 with a 4.96 ERA in 11 starts versus Arizona.

Greinke's winless streak reached four starts following last Sunday's no-decision at San Diego, giving up three runs and five hits while fanning seven in six frames. The five-time All-Star has suffered three straight losing decisions and permitted seven runs over his last two outings after yielding a total of five over his previous five starts. Robinson Cano has fared well versus Greinke, who owns a 5-1 record and 2.24 ERA in 12 career appearances (10 starts) against Seattle.

WALK-OFFS

1. Mariners OF Mitch Haniger has homered in three straight games after doing so only once over his previous 35 contests.

2. Arizona 1B Paul Goldschmidt needs one more home run to post back-to-back 30-homer seasons for the first time in his career.

3. Seattle RHP Edwin Diaz became the 17th pitcher in major-league history to reach 50 saves in a season on Saturday.

PREDICTION: Mariners 3, Diamondbacks 2