By James Agberebi:
Nigerian youngster Alex Iwobi was in sparkling form as Arsenal ended their nine-game winless streak against Chelsea in the Premier League after beating them 3-0 at the Emirates on Saturday.
It was Arsenal's biggest win over Chelsea since 1997 and the first in five years in competitive football.
First half goals from Alexis Sanchez, Theo Walcott and Mesut Ozil earned Arsenal the win.
The win was Arsenal's fourth straight win which lift them to third in the league table.
Iwobi, who was a candidate for man of the match with his dazzling display of skills, guile and penetration, was taken off in the 69th minute as second half.
Santi Cazorla had Arsenal's first shot on goal in the fourth minute which Thibaut Courtois punched away.
Arsenal had another shot on goal in the ninth minute through Alexis Sanchez which was deflected away for a corner.
Sanchez gave Arsenal the lead on 11 minutes after robbing Gary Cahill before chipping Courtois.
Walcott doubled Arsenal's lead in the 14th minute finishing off an intricate pass that involved Hector Bellerin, Alex Iwobi and Mesut Ozil.
In the 19th minute Sanchez hit a left foot strike after sloppy play by Chelsea defense but his effort went wide.
Willian had Chelsea's first real chance on 21 minutes but his low shot went just wide.
Hector Bellerin had a chance on 25 minutes but his shot from the edge was deflecetd by Cahill for a corner.
Arsenal had a free-kick on Chelsea's edge after Branislav Ivanovic tripped Iwobi but his effort came off Chelsea's wall and went off for a corner.
In the 31st minute Arsenal made their first substitution with Granit Xhaka replacing Francis Coquelin who went off injured.
Diego Costa went close for Chelsea on 39 minutes but his shot was blocked by Laurent Koscielny.
Ozil made it 3-0 for Arsenal on 40 minutes finishing off a fine assist from Sanchez.
Eden Hazard almost got Chelsea on the score sheet off Cesc Fabregas' free-kick but his shot hit the side netting.
In the 53rd minute Arsenal almost scored a fourth but Bellerin's cross evaded everyone inside the box.
Chelsea made their first change on 55 minutes bringing on Marcos Alonso for Fabregas.
Arsenal broke on the left through Bellerin on 57 minute but Ivanovic cleared away for a corner.
In the 61st minute a pull out from Cesar Azpilicuerta was headed wide by Costa.
Ivanovic hit a long range strike on 67 minute but his effort went over the bar.
Walcott almost scored again in the 69th minute but Courtois deflected away for a corner.
A minute later Iwobi went off for Kieran Gibbs.
Chelsea made a double change with Willian and Hazard going off for Pedro and Michy Batshuayi.
Arsenal made their last change on 79 minutes with Olivier Giroud going in for Sanchez.
Chelsea went close a few minutes later but Gibbs made a timely clearance.
Azpilicuerta tried a long range effort on 82 minutes but Cech made a comfortable save.
In the 84th minute Batshuayi went through on goal but couldn't beat Cech one-on-one as his shot deflected away for a corner.
A minute later Giroud went close but couldn't direct his effort on goal.
In the 92nd minute Giroud was played in but Courtois came out to grab the ball.