Take that: Alex Vannucci pitched a four-hit complete game to defeat Oak Park High School 3-1 in the first game of a double-header Saturday in Western Springs.DAVID PIERINI/Staff Photographer

Prior to Saturday’s highly anticipated doubleheader between Lyons Township and Oak Park high schools, the last time the two annual powerhouse baseball programs collided was in the 2012 Class 4A state championship game (won by the Oak Park 5-4 courtesy of a dramatic walk-off hit).

LTHS (14-6, 8-3 West Suburban Silver) gained a measure of revenge against the defending state champs and, more importantly, a sweep on Saturday by defeating the Huskies 3-1 in the opener and 7-4 in the nightcap.

In game one, Lions left-hander Alex Vannucci threw a complete game four-hitter and didn’t allow an earned run.

“The key for me was just hitting my spots and keeping the ball away,” Vannucci said. “Guys like [Sam] Heilenbach and Tom Prescott made great defensive plays, too.”

OPRF (11-7, 7-4) squandered a scoring opportunity with runners on the corners in the top of the first.

“In the first, there was a pickoff play [by LT] and we missed a sign,” Oak Park first baseman Nick Kowalczuk said about the key play resulting in Sam Cottingham Beard getting thrown out at home plate to end the inning. “The game came down to a couple of plays like that where we made mental mistakes.”

LTHS scratched across a run in its half of the frame when Heilenbach drew a bases-loaded walk off Oak Park starter Henry Cappel to give the Lions a 1-0 lead.

The Lions extended their advantage to 2-0 in the bottom of third as Mike Lorenz scored from third on Oak Park shortstop Charlie Fencik’s fielding error.

The Huskies responded in the top of the fourth as Jon Ernest, Fencik and Henry Pine strung together consecutive singles to load the bases. After Vannucci fanned Patrick Clifford on a called third strike, Cottingham Beard hit a sacrifice fly scoring Ernest to draw Oak Park within 2-1.

LTHS added an insurance run in the fourth to make the score 3-1 when Lorenz scored on a botched rundown play from the Huskies between third and home.

Over the final three frames, Vannucci yielded just a double to Oak Park third baseman Keith Rogalla and a walk to Cottingham Beard.

In the second game, Michigan-bound right-hander Keith Lehmann (5-0) gave up seven hits and struck out six in a complete-game victory for LTHS. Knotted at 3-3 in the bottom of the sixth, left fielder Jim Pavlik and designated hitter Matt Aikens each cracked a two-run double paving the way for the Lions’ sweep of their primary conference rival.

The Huskies scored three unearned runs in the sixth aided by two LTHS errors to tie the game at 3-3. Rogalla hit a clutch two-RBI double and later scored OPRF’s third run of the frame on an errant throw by Heilenbach.

“We were on fire in the beginning [of the season] but we’ve hit some losses [now] with Hinsdale Central and LT,” Rogalla said. “I still think we’re a pretty good, but LT is a pretty good ball team, too.”

The respect is mutual between the LTHS and Oak Park —they won the 4A state championship in 2011 and 2012 respectively. The Lions are also the defending summer state champs.

“The rivalry has always been a fun to watch for spectators,” LT coach George Ushela said. “Whenever OPRF is coming, we know they are going to compete. Fortunately, we came out on top this time.”