CHICAGO (AP) — Pitcher Jon Lester drove in Jason Heyward with a two-strike squeeze bunt in the 12th inning, and the Chicago Cubs overcame a six-run deficit to beat the Seattle Mariners 7-6 on Sunday night.

Heyward sparked the winning rally with a leadoff double off the wall in right-center. He advanced on Wilson Contreras' fly ball to center against Cody Martin (1-1) before Lester managed to get a bunt down right in front of the plate.

Heyward made it home with a headfirst slide, sparking a frenzied celebration at Wrigley Field. Hector Rondon (2-2) pitched two innings for the win.

The Cubs trailed 6-3 before they pushed across three runs in the ninth against Steve Cishek, handing the sidewinding right-hander his sixth blown save in 31 opportunities. Addison Russell hit an RBI single and Contreras drove in another run when he hustled down the line to beat out a potential double-play grounder.