The 27-year-old suffered a double compound leg fracture in the Robins' play-off defeat at Leeds last September and has not played since.
Brownlee has already dealt with a major injury once, missing the opening half of the 2010 season with a stress fracture in his leg.
BBC: Sport - Alistair Brownlee ready for crucial Olympic qualifying year
Meanwhile, striker Rabiu Baita will be out of action for at least six weeks after suffering a leg fracture during the Super Eagles' World Cup qualifier against Angola last Sunday.
The Cardinals are not only the favorites to win the national championship, they've become sentimental favorites, as well, after rallying around Kevin Ware, the guard whose compound leg fracture in last week's regional final turned stomachs, while also warming hearts and setting the story line for this week in Atlanta.
He has used a cane since February, when he suffered a severe fracture of his left leg playing league soccer.
"An x-ray we did in Angola showed he suffered a fracture on his right leg and will be out of action for six weeks, " said Nigeria team doctor Mu'azu Abdulkadir.
New Zealand captain DJ Forbes, who played with a hairline fracture in his lower leg, was devastated after his side were overhauled in the last seconds in front of largely partisan 35, 000 crowd.
The Australian suffered a compound fracture of his lower right leg in a mountain bike accident on 22 November.
He said Mr Budworth was due to have spinal surgery in a UK hospital later this week and also had two broken toes, while his wife also suffered a double fracture to her lower left leg.
The other, shot in the leg, suffered a fracture, doctors said.
Deng had to pull out of the Eurobasket tournament, where his British teammates are competing in Bulgaria between September 7-20, due to a stress fracture to a bone in his leg, an injury that kept him out of action for much of last season.
The court heard the baby's fracture healed and within a few weeks his leg seemed to be equal in length to the other.
Bahrain's leading opposition party, Al-Wefaq, said Habib suffered a neck fracture, wounds from birdshot, bruises to his hand and leg, and severe burns to his chest and stomach.
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