Rugby referee Tim Wills is on the road to recovery after collapsing with heart failure near the end of a club game in Dunedin on Saturday.
Wills, 21, was officiating a championship colts game between Green Island Grizzlies and Kaikorai Cobras when he fell to the ground unconscious with eight minutes still to play.
It is understood Wills has an underlying heart condition, which recurred when on the field on Saturday.
"He is still in hospital waiting to hear from his specialist, who is based in Christchurch," Otago Rugby Referees Association chairman Bryce Adie said.
"But he is sitting up in bed and he's okay, even though it was pretty horrific for him and maybe even more so for the people around him."