Andre Agassi just did it. Again.

Eight years after leaving Nike to sign with Adidas, Agassi reunited with the Swoosh on Monday.

The tennis Hall of Famer posted a photo on his Facebook page that shows him standing under the famed Nike logo. The caption was simple and direct:

BACK HOME.

Agassi, 43, was not immediately available for comment. But Nike confirmed that Hall of Famer was back in its fold through a press release that included this quote from Agassi:

"Nike has opened new horizons through its Designed to Move campaign, while consistently and historically championing health and fitness. Coming back together through this partnership will have a multiplying effect on this and future generations."

Nike, the American College of Sports Medicine and the International Council of Science & Physical Education are among the groups involved with Designed To Move, a project that promotes physical activity, particularly with children. This combination of helping kids and advocating fitness should be an attractive blend for Agassi.

Since retiring from tennis in 2006, Agassi has devoted much of his time to improving education across America. He founded a charter school in Las Vegas in 2001, and then in 2011, he launched a campaign to provide $500 million of funding for 75 charter schools nationwide.

Last year Agassi and his trainer, Gil Reyes, introduced a line of fitness equipment called BILT that's based on the customized pieces of gym equipment he used during his career. One of them, known as the Change Of Direction (COD) Machine, won an industry award for its design and safety.

"As a philanthropist and campaigner, he continues to share Nike's commitment to inspire the young generation with his Just Do It spirit," Nike co-founder and chairman Phil Knight said in a statement. "We are honored to welcome him back."

Back in 2005, the Los Angeles Times reported that one of the reasons Agassi left Nike was the "willingness of Adidas to also support Agassi's charitable foundation and other initiatives." Additionally, Agassi's wife, Steffi Graf, wore Adidas throughout her career.

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