GLENDALE, AZ - JANUARY 10: Troy Aikman attends the 2010 NFC wild-card playoff game between the Green Bay Packers the Arizona Cardinals at the Universtity of Phoenix Stadium on January 10, 2010 in Glendale, Arizona. The Cardinals defeated the Packers 51-45 in overtime. (Photo by Christian Petersen/Getty Images)
Aikman confirmed the separation from his wife in a statement published in the paper, where he said it was "a difficult decision" for them both and that they "remain deeply committed" to their children.
The couple were married in 2000 and have two daughters together. His wife also has a daughter from a previous marriage.
So far, Aikman has issued no other statement on the matter.
NBCDFW's Shane Allen contributed to this report.