Arsenal midfielder Granit Xhaka was hauled off at half time, to make way for Lucas Torreira, following a frenetic first 45 minutes at Stamford Bridge on Saturday.In a disastrous opening half hour for the Gunners, which saw Chelsea race to a 2-0 lead as Unai Emeryâs men spurned a succession of golden goalscoring opportunities, Xhaka failed to establish any Arsenal control in the centre of the park.[brid autoplay="true" video="280042" player="12034" title="Watch Fixture in Focus Chelsea v Arsenal"]The Swiss internationalâs immobility was cruelly exposed by the swift, concise movements of Chelseaâs midfield trio. It was too easy for the Blues to breach Arsenalâs defence for various reasons, but the 25-year-oldâs inability to effectively shield his defence left the Gunnersâ back line vulnerable. Emery took a bold decision to remove the yellow-carded Xhaka from proceedings at the break in favour of the new arrival Torreira. Many Arsenal fans on Twitter were glad to see the substitution made and are rapidly losing patience with Xhaka...[ad_pod ]