The league leaders' mission for payback in recent days has continued. Following thrashing Aston Villa, it was Andoni Iraola's Bournemouth who felt the force despite being gifted an early lead courtesy of a rare Gabriel mistake.
Gabriel atoned with a goal the equalizer, before Declan Rice marked his comeback by netting a decisive brace to help Arsenal extended their advantage to six points.
Mikel Arteta had vowed his players had learned from last season's loss on this ground. Following a sloppy first-half, the signs suggested old habits remained unlearned. However, a much sharper display after the interval, inspired by Rice's marauding presence, earned another league triumph propelling a stern warning to their rivals.
The day's results had seen their lead cut before kick-off. The positive news, however, was Declan Rice coming through a late fitness test. With an eye on a crucial meeting with Liverpool, Arteta rotated, with star wingers and Trossard among the substitutes.
Bournemouth, unchanged, saw their forward nearly make an instant impact immediately. Against the run of play, the opener fell to the hosts when an errant attempted ball fell kindly to the striker, slotting home with ease.
The manager's ire was palpable, but it was the culprit who delivered the response. Following good play from Noni Madueke, a scramble ensued to Gabriel, who lashed home with his weaker foot to restore parity.
The opening half remained far from fluid for the visitors, with striker Viktor Gyökeres isolated and Evanilson causing problems. Tempers flared at halftime, with the Arsenal bench exchanging words with the opposition and heading off down the tunnel.
Whatever was said during the interval worked wonders. Within a minute of the restart, neat interplay through the midfield set up Rice, whose powerful drive flew past Djordje Petrovic to complete the turnaround.
Rice wasn't finished, grabbing his brace soon after following exquisite combination play involving Saka and Martin Ødegaard. His celebration affectionately for the cameras, with the away side seemed to be cruising.
The home side, to their credit, found a response. Replacement Eli Junior Kroupi struck an outstanding long-range effort which soared into the net creating a frantic finale.
The Cherries pressed for an equalizer in the dying moments, with their fans incensed as full-time was blown during one last attack. For Arsenal and the victorious team, it was the only thing that counted: three more crucial points in a relentless title pursuit.
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