Aubameyang already has nine goals in 14 match appearances this season and still challenging with Alexander Lacazette for a spot upfront at Arsenal.
Arsenal’s game draw with Sporting still have them in place to qualify for the last-32, but the top spot is still up for grabs.
The game was overshadowed by a serious injury to Danny Welbeck, who needed oxygen and was stretched off pitch.
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Arsenal expected Pierre-Emerick Aubameyang to use all chances wisely, but it seems something went wrong.