What happened to Brian To'o? Latest news, injury updates as ...

Brian To'o suddenly departed the field midway through the second half of the NRL grand final.

The Panthers star was seen walking down the tunnel at Accor Stadium as his team continued their tireless battle against the Storm.

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Channel 9's Danica Mason reported that To'o suffered a suspected knee injury.

Mason later described the incident as "nasty knee clash". 

He did not return for the remainder of the clash.