Scorching-hot PCA leads Cubs in showdown with Brewers, plus NL East clash among top series of week

Lock in, baseball fans, because September is (basically) upon us.

As we prepare to settle in for another postseason push, here are five series with major playoff implications in the week of Aug. 31.

Brewers at Cubs
Monday-Thursday (4 games)

Head-to-head: The Brewers currently lead the season series, four games to two; that said, the Cubs did win their last three-game set back in June.

Storyline: The Cubs could make a race out of the current situation in the NL Central … if they play their cards exactly right. The clubs will be playing seven of their next 10 games against each other to settle the score between them in 2026, and as of Monday morning, they're 7 1/2 games back with 26 games left on the schedule. Losing this first series would likely put their divisional ambitions to bed; on the other hand, taking at least three of four from the team running away with the best record in baseball could change everything for both parties.

Watch out for: There are a couple of excellent scheduled pitching matchups in this one -- starting, notably, with Kyle Harrison vs. Clay Holmes on Monday -- but there's just no getting around the way Pete Crow-Armstrong is playing. Hosting the Reds over the weekend, PCA went 8-for-14 with five home runs (including his first three-homer game), bringing him up to 14 in the month of August alone.

White Sox at Astros
Monday-Thursday (4 games)

Head-to-head: World Series rematch, anyone? For something much more recent than a 21-year-old Fall Classic, the Astros won the first 2026 series, two games to one, back from July 24-26 in Chicago.

Storyline: The AL Central and AL West are up for grabs in a way none of the other four divisions are, and here we have a meeting between their leaders. The White Sox have a 3 1/2-game lead over the Guardians while the Astros, still in real danger of becoming the first sub-.500 division winner, have the Rangers breathing down their necks (2 GB) and the Mariners (despite their current tailspin) still within striking distance (5 GB).

Watch out for: Tristan Peters, who lately seems hellbent on hitting for the cycle again. (He did so for the first time on July 10.) Chicago's upstart center fielder is hitting .385/.448/.808 with four doubles, six homers and 12 RBIs since Aug. 14, a period that included back-to-back games he ended a triple shy of the cycle (Aug. 24-25).

Blue Jays at Guardians
Tuesday-Thursday (3 games)

Head-to-head: They played quite a tight series all the way back in April, which the Guardians won, 2-1. In recent history, things have been pretty even between the two; in 36 total matchups since the beginning of the 2021 season, the Guardians have won 19 to the Blue Jays' 17.

Storyline: After posting a 17-11 record in August, the Blue Jays look revitalized and ready to make trouble for everyone else chasing that third AL Wild Card spot -- essentially all that remains up for grabs, as the broader Wild Card race is no longer distinguishable from the race for the AL East. Currently in that coveted spot, conveniently, are the Guardians, on a mini run of their own having won eight of their last 10 games and trying to make this hot streak count.

Watch out for: Dylan Cease, taking the mound Wednesday opposite Joey Cantillo, remains appointment viewing. Coming off six innings of one-run ball against the Mariners in his last outing, Cease has his ERA down to 2.33 and leads the AL with 217 strikeouts (in 150 1/3 IP.)

Braves at Phillies
Friday-Monday (4 games)

Head-to-head: The Braves currently lead the season series, five games to one, but all of those games were played in April, when the Phillies couldn't win, the Braves couldn't lose, and no one could have foreseen a divisional race between the two happening in 2026.

Storyline: Like Cubs-Brewers, this series could decide whether we have a divisional race on our hands. A five-game lead, at this point in the season, is quite a cushion, but with seven head-to-head games remaining, it could just as easily slip through their fingers. The Braves, who at one point had a 10 1/2-game lead, know that as well as anyone, and they've got a lot to worry about, because the Phillies have now won 13 of their last 15 games and are pulling off some wildly improbable comebacks.

Watch out for: Bryce Harper, who after hitting .172 in July enters play on Monday hitting .326/.496/.565 with seven doubles, five home runs and 13 RBIs in August while the Phillies have gone 20-7.

Yankees at Padres
Friday-Sunday (3 games)

Head-to-head: The Yankees have won four straight series against the Padres (2019, 2023-25) and are 17-10 against them all-time in the regular season -- plus that sweep in the 1998 World Series.

Storyline: These teams actually have a lot more in common than the Juan Soto deal. In their current position a half-game out of a Wild Card spot, the Padres can't afford to be losing Interleague games; neither can the Yankees, sitting 4 1/2 games behind the Rays in the AL East. The Yankees can never be certain their offense will show up to support their rotation; the Padres have to wonder whether theirs will be capable of handing a lead off to their bullpen. The Padres are 41-28 at home; the Yankees are 41-28 on the road. Who blinks first?

Watch out for: New York's lineup is starting to show signs of life for the first time in a while, due in no small part to Deadline acquisition Luis Garcia Jr. finding his footing; since Aug. 20, he's hitting .441 with four home runs, and his team, previously scoring 3.2 runs per game in August, has pulled that monthly average up to 4.2.