NEW YORK -- Bartolo Colon, a fan favorite in Flushing over three seasons toward the end of a 21-year career, is set to return to Queens for one final sendoff.

The Mets announced during Friday’s game against the Nationals that Colon will officially retire as a member of the organization on Sept. 17 before a game against the Reds. To commemorate the occasion, the team plans to give away a “Big Sexy” long-sleeved shirt -- stylized like a perfume ad -- to the first 15,000 fans in attendance.

“I played with a lot of teams during my career, but playing for the Mets was very special to me,” Colon said in a statement. “The fans treated me great and I can’t wait to celebrate my career with them on September 17.”

Colon, 50, has become an occasional presence at Citi Field over the past two years, appearing at Old-Timers’ Day last August, then again this May to celebrate the seven-year anniversary of his only career home run.

He went 44-34 with a 3.90 ERA over three seasons with the Mets from 2014-16, serving as a rotation cog despite being in his 40s for his entire tenure. His time in New York included seven relief appearances during the 2015 postseason and his famous home run in San Diego in 2016. Colon, who played for 11 different franchises and is the all-time winningest Dominican-born pitcher, last appeared in the Majors for the Rangers in 2018.

His manager with the Mets, Terry Collins, will also be on hand for the Sept. 17 ceremony.