Despite mustering ridiculous numbers in his age-40 season, David Ortiz isn't changing his mind about calling it quits.

The Boston Red Sox slugger leads all of MLB in slugging (.728) and OPS (1.150) as well as RBIs (55), but while while there's no evidence of Ortiz tailing off at all in his 20th season in the big leagues, he isn't about to renege on his debated retirement plans.

"A couple of years ago everyone kept asking, 'How much longer you going to play?'" Ortiz told USA TODAY Sports' Bob Nightengale. "And now, people see you doing your thing, and they're telling you, 'Don't quit now. We would like to see you play for another year.' It's crazy. But right now, my mind is made up. Physically, I could do it, but mentally, I'm exhausted. Hopefully, everything keeps going well this year, because right now, everything is going perfect.

Related: Ortiz: Turning down $25M to play another year would be hard

As Ortiz embarks on his last lap around the majors, teams have honored the retiring slugger with gifts such as barbecue sauce and a humidor of cigars as he graces their grounds on the road for the final time. And, though Ortiz stated he didn't expect a farewell tour in December, his concluding year has been more enjoyable than he ever anticipated.

"I'm having so much fun, bro. I'm having as much fun as I've ever had in my life," Ortiz told Nightengale. "I'm having so much fun that I actually can't believe I'm retiring this year, either."

Neither can we, Papi.