• Kittel tweets a picture of his bloodied face after stage three • ‘What Grivko did is a shame for our beautiful sport’

There was controversy on stage three of the Dubai Tour after the race leader, Marcel Kittel, said he was punched by Astana’s Andriy Grivko during the race. The Ukrainian Grivko was disqualified by organisers after the stage was over and Astana issued an apology to Kittel and his Quick‑Step Floors team, but that was not enough to placate the German sprinter.

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Kittel posted a picture on his Twitter feed showing him bloodied from the blow, and wrote: “I won’t accept an apology for this. That has nothing to do with cycling. What Grivko did is a shame for our beautiful sport.”

Kittel had won each of the day’s opening two stages in a race which strongly favours sprinters, but was outside the top 10 on day three as his former Giant team-mate John Degenkolb, now with Trek-Segafredo, took stage honours. Afterwards, Kittel suggested his disappointing finish was related to the incident with Grivko, which happened early on the 200km stage from Dubai to Al Aqah.

“When we passed a construction site, the sand began blowing and as soon as we went into the crosswinds we were fighting for position, which is always stressful, and Andriy Grivko punched me,” Kittel said on his team’s website. “I really can’t understand how he can do something like that.

“I get that riding in the crosswinds is always tense, but it gives him no right to act like that. He could have hurt my eye. It’s a real shame what happened. In the finale, my mind wasn’t 100% on the sprint, but I am happy I have no big injuries and I kept the lead.”

Marcel Kittel (@marcelkittel) I won't accept an apology for this. That has nothing to do with cycling. What Grivko did is a shame for our beautiful sport. pic.twitter.com/vvMN5LzQN0

Mark Cavendish (Dimension Data) was also outside the top 10 in an untidy sprint finish, with Aqua Blue Sport’s Adam Blythe the best-placed Briton in ninth place after his team-mate Mark Christian spent most of the day in the break. Kittel retains the overall race lead by eight seconds from Dylan Groenewegen of Team Lotto NL-Jumbo.