John Andretti revealed on Tuesday that his colon cancer has returned and spread to other parts of his body.

The 55-year-old completed chemotherapy last November and had been feeling optimistic about his condition. The long-time NASCAR and IndyCar competitor reported last summer that his spleen and gall bladder were cancer free. However, Tuesday's update went the other direction.

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Following my 6 month scans last week, we received the news that the cancer has returned & spread to other areas. We are in the process of evaluating our options of treatment. Although this is a difficult time for us, your continued prayers & support are very important to us. — John Andretti (@John_Andretti) May 29, 2018

Despite his personal battle, Andretti took the opportunity to use this as an inspirational tool, coining the Twitter hashtag #CheckIt4Andretti to encourage others to get screened.

Andretti is the nephew of Indy 500 and F1 world champion Mario Andretti. He has two victories in the Monster Energy NASCAR Cup Series -- at Daytona and Martinsville, respectively. Andretti also earned a CART victory at Surfers Paradise back in 1991.

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