SAN DIEGO (AP) — Fernando Tatis Jr. hit a towering two-run homer on his first playoff swing in four years and Michael King struck out 12 in his first postseason start as the San Diego Padres beat rookie AJ Smith-Shawver and the Atlanta Braves 4-0 in Game 1 of their NL Wild Card Series on Tuesday night.

Tatis' 415-foot shot landed in the second deck in left field at Petco Park and sent the towel-waving, sellout crowd of 47,647 into a frenzy. The 25-year-old star, who missed just more than 2 1/2 months this season with a stress reaction in his right thighbone, watched the ball fly away, tossed his bat aside, gestured toward the home dugout and did his signature stutter-step around third base.

Game 2 in the best-of-three playoff is Wednesday night. If the Padres win the series, they'll face their biggest rivals, the NL West champion Los Angeles Dodgers, in the National League Division Series. The Padres eliminated the 111-win Dodgers in a 2022 NLDS.

King was brilliant in becoming the first pitcher to have 12 strikeouts with no runs and no walks allowed in his first career postseason start. He joined Kevin Brown and Sterling Hitchcock as the only Padres pitchers with double-digit strikeout games in playoff history. He allowed five hits and walked none.

King made his playoff debut with the New York Yankees in the AL playoff bubble in 2020 at eerily empty Petco Park, where the only “fans” were a few thousand cardboard cutouts. He pitched two innings in a loss in Game 3 in a Division Series that Tampa Bay won in five games.

The right-hander came over in the blockbuster trade that sent Juan Soto to the Yankees on Dec. 7.

The Padres were the only one of the four home teams to win Tuesday.

The Braves clinched a playoff berth by winning the second game of a makeup doubleheader against the New York Mets on Monday in Atlanta. They are without NL Cy Young Award favorite Chris Sale for this series. The left-hander was scratched from the late game Monday with spasms.

Tatis homered on a 94 mph four-seamer from the 21-year-old Smith-Shawyer, one of the Braves' top prospects who was making his first playoff start and just his second this season.

Luis Arraez was aboard on a leadoff single. Arraez, obtained in a trade with Miami in early May, became the first player since the 1800s to win three batting titles with three different teams.

Tatis experienced his first playoff game with fans in the stands. His first playoffs were in 2020 after the pandemic-shortened season. He missed the 2022 run to the National League Championship Series after receiving an 80-game PED suspension from MLB that August.

His home run came on the anniversary of his two home runs in 2020 in a Wild Card Series game against the St. Louis Cardinals. Mike Shildt, in his first season managing the Padres, was St. Louis' skipper then.

Kyle Higashioka homered in the eighth and had a sacrifice fly in the second. He is 3 for 30 against Atlanta, with three homers.

Smith-Shawver allowed three runs and four hits in 1 1/3 innings

Manager Brian Snitker said Smith-Shawver didn't know he was starting until the manager called him Tuesday morning.

“It might have been a shock when we put him on the plane last night,” Snitker said.

TRAINER'S ROOM

Braves: Snitker said he spoke with Sale on Tuesday. “He's not feeling real good. He wanted to be here pitching. Unfortunately he can't. It's tough for him. He was realistic with us in how he felt.”

UP NEXT

Braves LHP Max Fried (11-10, 3.25 ERA) and Padres RHP Joe Musgrove (6-5, 3.88) are scheduled to start Wednesday night. Fried is a former Padres farmhand. Musgrove grew up in suburban El Cajon.

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