Moreno was disqualified from the race after stage four after television footage initially showed him pulling at the back of Rosa's jersey before pushing him towards the crowd, causing him to crash.
However the new footage appears to show Rosa punching Moreno's leg as he rides past in the bunch, which could perhaps explain Moreno's retaliation that saw him kicked off the Giro.
Speaking after yesterday's stage Rosa described the incident as "a moment of stress, we ran into each other, and he touched me, I touched him, and then he threw me off."
However Bahrain-Merida sports director Gorazd Stangelj said that Rosa had hit Moreno prior to the push that saw his rider thrown off the race, an account that now seems to have been corroborated by the new footage.
It is currently unclear whether the race jury will take any action against Rosa in light of the footage.
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Henry Robertshaw began his time at Cycling Weekly working with the tech team, writing reviews, buying guides and appearing in videos advising on how to dress for the seasons. He later moved over to the news team, where his work focused on the professional peloton as well as legislation and provision for cycling. He's since moved his career in a new direction, with a role at the Department for Environment, Food and Rural Affairs.
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