Chicago Cubs' Craig Counsell makes a pitching change during the sixth inning of Game 2 of a National League wild card game against the San Diego Padres on Wednesday in Chicago. (AP Photo/Erin Hooley)

Major League Baseball’s playoffs now move into the Division Series, which will include Shohei Ohtani’s postseason pitching debut, an unwelcome reunion in Milwaukee, a matchup of teams that tied for the most wins in the American League, and a switch-hitting catcher who finished the season with 60 home runs.

All four series begin today, when two-way star Ohtani — already with two home runs this postseason after hitting a career-high 55 in the regular season — starts on the mound for the reigning World Series champion Los Angeles Dodgers in Game 1 at Philadelphia.

In the other National League series, the 97-win Brewers open at home against former manager Craig Counsell and the Chicago Cubs. Counsell has been booed lustily in Milwaukee ever since he left two years ago for the NL Central rival Cubs.

AL East rivals Toronto and the New York Yankees both won 94 regular-season games. Star slugger Cal Raleigh and Seattle take on Detroit in the other American League series.

The Cubs advanced with their first postseason series victory since 2017, the year after winning the World Series.

The Brewers had an NL-best 3.58 ERA with a staff led by All-Star pitchers Freddy Peralta, the NL leader with 17 wins, and closer Trevor Megill (6-3, 30 saves). Milwaukee’s Brandon Woodruff won’t pitch in the NL Division Series as he recovers from a right lat strain, but the Brewers aren’t closing the door on the possibility he could return later in the postseason.

Chicago Cubs rookie Cade Horton won’t pitch against the Brewers as he recovers from a rib fracture that sent him on the injured list during the regular season’s final week.

Tigers ace lefty Tarik Skubal, the reigning AL Cy Young Award winner who could win that prize again, was picked by Detroit in the ninth round of the 2018 amateur draft out of Seattle University, which is only a couple of miles from the Mariners’ ballpark.