Posted: Tuesday September 11, 2012 7:44PM ; Updated: Tuesday September 11, 2012 8:39PM

Maroney has fractured tibia

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McKyla Maroney suffered a broken tibia in a fall on Sunday night

It is not clear if or when Maroney will be able to rejoin the post-Olympics tour

McKyla Maroney is helped by athletic trainers after falling Sunday night on the uneven bars.

Michael Goulding/ZUMAPRESS.com

INDIANAPOLIS (AP) Add a fractured tibia to Olympic champion McKayla Maroney's injuries this summer.

Maroney fractured her left tibia Sunday when she fell on her uneven bars dismount during the second stop of a 40-city gymnastics tour. USA Gymnastics said Tuesday that her leg is in a brace, and she and her family are consulting with doctors on treatment. It's not certain when she'll return to the tour.

Aly Raisman, who bruised her knees in a separate fall off bars, is expected to return this weekend. The tour resumes Thursday in San Diego.

It's been a rough few months for Maroney. She missed the second day of the U.S. championships in June because of a concussion and a nasal fracture, and competed in London despite a break in her right big toe.