More than 1,000 fans turned out at the stadium to cheer Sinfield at the end of his 101-mile run which has raised more than £640,000 for the battle against motor neurone disease.
Sinfield set off from Leicester at 8.40am yesterday and arrived at Leeds Rhinos' ground a little less than 24 hours later.
Rob Burrow, Sinfield's former Rhinos teammate who was diagnosed with mnd two years ago, was among those at the ground to welcome the ex-Rhinos captain home.
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Within moments of Sinfield crossing the finish line, total donations - to be split between Leeds Hospitals Charity appeal to build a Rob Burrow Centre for MND in the city and the MNDA Associations - had passed £646,200.
By early afternoon the ‘extra-mile’ challenge had raised more than £1m, with the total still climbing.
An exhausted Sinfield was clearly moved by the reception from his fans, at the stadium and on the roads between Leicester and Leeds.
He said: "It has been a real team effort, so much has gone on behind the scenes and the support from the start has been brilliant."
Sinfield admitted the run was just as tough as he had expected.
"We wanted a battle and we got one, but we got here," he added.
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