Gareth Bale scored the game's opening goal
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An Arsenal supporter has admitted throwing a banana at Tottenham Hotspur star Gareth Bale during the north London derby last month.
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Thomas Flint, 23, a carpenter from Enfield, threw the missile during the game at White Hart Lane on 3 March.
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Highbury Corner Magistrates' Court heard Flint also admit to using threatening or abusive words or behaviour likely to cause alarm.
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Arsenal had said anyone found guilty over the incident will receive a ban.
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District Judge Rebecca Crane said the "disgraceful" actions could have led to violence.
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She went on: "You have let yourself down.
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"You have good references but you allowed your passion for football and the game to boil over into hostility for a single player and the opposing team.
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"This was more than foolish - it was disgraceful behaviour."
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Flint was sentenced to a three-year football banning order, fined £250 and ordered to pay costs of £85.
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His solicitor, Christopher Wright, said: "He has been an avid supporter since childhood and attended many dozens, if not hundreds, of matches without incident.
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"He wishes to apologise through me for his actions and utter foolishness and apologise to the opposing team. He let his own team down by his conduct.
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"It is not a racially aggravated offence."