David Ortiz, the Red Sox star designated hitter who propelled his team to three World Series titles in ten years, made it official last November that this season would be his last.

Baseball has been bidding farewell to “Big Papi” all season. The 40-year-old has spent 20 of those years in the big leagues, racking up 10 All-Star nods, six Silver Slugger Awards and plenty of memories along way.

As the Red Sox embark on their eighth and final playoff appearance with Ortiz, let’s take a look at some of the biggest Big Papi moments.

More about Home Run, Walk Off, Alcs, Alds, and Playoffs

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10 defining moments from David Ortiz’s 20-year career