Reiss Nelson became the surprising star of the show at the Emirates as Arsenal ruthlessly beat Nottingham Forest 5-0.
Nelson came off the bench to grab two goals and an assist with Gabriel Martinelli, Thomas Partey and Martin Odegaard all on the scoresheet.
The Gunners returned top of the Premier League and restored their two-point lead in emphatic fashion.
Martinelli set the tone from the start when he returned home on the center of Bukayo Saka.
Saka was then forced to sustain the injury in the first half with what looked like a blow to his ankle and the footage of him limping through the tunnel was worrying for Arsenal and England fans.
Nelson was introduced in his place and stepped up in spectacular style.
His only previous Premier League goal came 837 days ago before scoring in the 49th minute.
The 22-year-old’s initial shot was saved by Dean Henderson but he followed to finish high into the Forest goal.
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Nelson then only had to wait three minutes and a second for another high-flying strike as he quickly made it 3-0 when he brought home Gabriel Jesus’ cross.
Forest’s headers had fallen and they quickly dispatched a fourth, Nelson the provider this time as he slipped a ball for Thomas Partey to slot superbly outside the box.
Captain Martin Odegaard added a fine fifth, played by Jesus before putting away his fourth of the campaign.
While Arsenal have returned to the top, Forest remain bottom of the table with nine points with a goal difference of -20.