Gabi came through the ranks at Aleti, and although he left in 2007 to join Zaragoza, came back to Madrid for a second spell that lasted seven years.
And, after Atleti's 1-0 win over Espanyol, the 35-year-old returned to Wanda Metropolitano to receive thanks for his service to the club.
"Atleti is my life, the way I live, the way I work," Gabi said during an on-field presentation.
"We haven't always won, but we've always given life lessons and that's why I'm proud to be a part of this great club."
Antoine Griezmann proved the difference on the pitch for Atletico, the Frenchman converting from the penalty spot to keep Atletico in the title race with a narrow victory.