Referee Michael Oliver pulled out his canister after Arsenal skipper Mikel Arteta committed a foul in midfield and the Arsenal players moved back about four yards (meters) from their original positions as he sprayed the line on the pitch.
The vanishing spray, which disappears after about 30 seconds, has been authorised for use by the English FA for the Premier League season which starts next Saturday.
(Reporting by Mike Collett, editing by Pritha Sarkar)
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