Olympic triathlete Jonny Brownlee has thanked his "incredible" brother Alistair, who carried him across the line in the final of the World Triathlon Series.
Leading the race in Mexico with a kilometre to go, an exhausted Jonny Brownlee stopped and began to stumble.
Moments later he was caught up by his brother and fellow former Bradford Grammar Schoolboy Alistair and South African Henri Schoeman, who took the lead as Alistair put his arm around Jonny to keep him from collapsing.
Two-time Olympic gold medallist Alistair then pulled his brother to the finishing line, before pushing him forward so he could take second place.
Jonny, who collapsed as he crossed the line, was later taken to hospital.
Tweeting from his hospital bed, he thanked his brother for his "incredible" loyalty.
Jonny added: "Not how I wanted to end the season, but (I) gave it everything."
By helping Jonny cross the line in second, Alistair kept his brother's hopes of winning the 2016 World Triathlon Series alive.
But he was beaten to the title by Spaniard Mario Mola, who took the crown by just four points.
Speaking after the race, Alistair Brownlee said: "I have been in that position before and when it happened to me in London all those years ago I remember sprinting away in second place and then being in the position that Jonny is in now."
He added: "If it happened to Henri (Schoeman) I would have helped him across the line and to be honest, it is an awful position to be in.
"If he had of conked out about 1km from the finish line and there isn't medical support, it is dangerous position to be in."
The Spanish Triathlon Federation launched an appeal to disqualify Jonny Brownlee for accepting help from his brother, but it was unanimously rejected by the International Triathlon Union.
The ITU ruled that "athletes can receive help from another athlete, technical official or race official."
On his title win, Mario Mola said: "This was not how I wanted to win the world championship."
He added: "When I heard Jonny isn't feeling well, I thought 'I need to fight to the end'.
"We want everyone to be safe after the finish line, it's not the way I wanted it, but that's triathlon."