during on a golf trip


Senior Member
I found a sentence in an article titled

Calgary’s historic $40 million lottery winner Tom Crist donates it all to charity

at yahoo canada news website http://ca.news.yahoo.com/blogs/dailybrew/calgary-historic-40-million-lottery-winner-tom-crist-142923751.html

"Calgary's Tom Crist won the $40 million LottoMax jackpot in a draw on May 3, but didn't realize he won until he was contacted during on a golf trip in California."

Do we really need two prepositions "during" and "on" here? (I feel "on" could be omitted.)
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