Rodallega's Mexican club Necaxa revealed earlier this week the 23-year-old was due to join Wigan later this month.
Bruce has been trailing the highly-rated forward for some time and he has revealed he has applied for a work permit for Colombian international.
"We're close to it but, when you're dealing with someone from abroad, it is already racked with problems," Bruce told the Wigan Observer.
"But we are close to making that go through.
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