Viktor Gyokeres could earn Sporting over £400,000 this weekend if the Arsenal striker scores or assists three goals against Chelsea.

As part of the add-ons agreed when signing the Sweden international last summer, his former club are due £437,000 for every 20-goal contribution, according to The Sun. After scoring twice against Tottenham Hotspur in the north London Derby, Gyokeres is up to 15 goals and two assists across all competitions.

A hat-trick at Emirates Stadium on Sunday would bring up the milestone, although it would take an unprecedented performance. The most goals Gyokeres has contributed in a single match this season are two.

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He has, however, done so six times this term, one of which was against Chelsea in the League Cup semi-final first leg. Gyokeres scored Arsenal's second and set up Martin Zubimendi for their third...