The defender used his Twitter and Instagram channels on Tuesday morning (6 October) and, in a series of posts, expressed his delight at a Reds career that spanned more than a decade.
The 30-year-old said he would leave the club as a better person, after an impressive stint in M16 that delivered every major domestic trophy, plus the Europa League.
“It all began in July 2010, and now 10 years, 323 appearances, 2 titles, and 6 cups later, it has come to an end,” wrote Chris.
“Utd is a special place, and we achieved special things together, something I am beyond proud about.