Employees at Houston locations of the clothing chain said they learned Saturday the shirts contained the error. The Houston Oilers, now known as the Tennessee Titans, were the 1961 champions of the American Football League, the precursor to the AFC.
A spokesman for Old Navy owner Gap Inc. said the shirts are being pulled from the shelves, the Houston Chronicle reported Tuesday.
"The NFL clothing sold in our Old Navy stores is created by a third party sports licensing company," spokesman Edie Kissko said. "It is our intention to always provide the best merchandise to our customers and NFL fans. We apologize for this error and are removing the T-shirts."