The person confirmed the discussions to The Associated Press on condition of anonymity because the league and teams aren't talking publicly about the options.
Switching the game to Thursday or Friday is being considered, the person said, because Irma could threaten South Florida over the weekend.
Dolphins coach Adam Gase said he has received updates on the status of the game but declined to discuss options.
"They've just told us that they've started their preparations and they're working on multiple contingency plans, too numerous to mention," Koetter said "Again, it's premature.
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- Hyde5: With Hurricane Irma threatening, move Sunday's Dolphins game right nowSun Sentinel (blog)
- Report: NFL to discuss delay of Buccaneers, Dolphins game due to Hurricane IrmaAtlanta Journal Constitution
- NFL Might Move Dolphins-Bucs Season Opener Game Amid Hurricane IrmaThe Inquisitr
- Hurricane Irma threatens Miami Dolphins' season openerWPXI Pittsburgh
- Dolphins will be ready if Bucs game has to be moved up for Hurricane IrmaNBCSports.com
- Cat 5 Irma set to cancel Dolphins Sunday openerPhinPhanatic
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- NFL notesArkansas Online