Criminal Sentence 28: Not "In Tact"

From an article about a poor pitcher hit in the mouth by a baseball:

"Blackburn didn’t lose consciousness, and his teeth stayed in tact."

That should be "intact," an adjective meaning not broken. "Intact" is one word. "Tact," a noun, means the ability to speak or act without offending someone. "In tact" is not a valid combination of words.