Five walks in the seventh-inning set up the Mets for an Opening Day win at Citi Field as Lucas Duda and the offense eventually cashed in on the free bases and grabbed a 6-0 win on Monday afternoon.

Starters Noah Syndergaard and Julio Teheran kept the opposing offenses quiet for the first six-innings before the Atlanta bullpen stepped in.

New York scored all six runs in the seventh, with the help of the BB's, on an Asdrubal Cabrera RBI-single, a Curtis Granderson sac-fly and a Jay Bruce walk with the bases loaded. Duda drove in three with a double in the left-center field gap.

Syndergaard threw 86 pitches through six, struck out seven, walked none and allowed five hits. A blister on his finger forced an early exit. Hansel Robles was credited with the win after a scoreless top of the seventh in relief.

Teheran walked three, struck out six and allowed four hits in his six-innings.

The teams play the second game of the series on Wednesday night at 7:10, with Jacob deGrom against former Met Bartolo Colon.