Viktor Gyokeres was on the scoresheet as Arsenal beat Chelsea 3-2 in the first leg of their EFL Cup semi-final.
The striker responded to recent criticism with his first goal in five games.
Manager Mikel Arteta says he's never doubted Gyokeres.
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Chelsea Boss Liam Rosenior was disappointed with the goals his team conceded but says there are positives to take from the game.
The teams meet again in the second leg next month.
