Arsenal beat London rivals Chelsea 3-2 in the pulsating first leg of their blockbuster Carabao Cup semi-final tie on Wednesday night, having also brushed aside Championship opposition in Portsmouth on Sunday to reach the fourth round of the FA Cup, where they will host League One side Wigan next month.

Arsenal are currently top of the Premier League and Mikel Arteta has several key decisions to make this month as the Gunners look to win their first top-flight title in more than two decades.

Heading into the London derby, Arteta revealed that first-choice defender William Saliba is a doubt. The Basque boss, whose fitness updates are best taken with a pinch of salt, also confirmed that Piero Hincapié, Cristhian Mosquera and Riccardo Calafiori would not be able to fill that vacant slot as they remained sidelined with various ailments.

Arsenal have hired former Liverpool throw-in coach Thomas Gronnemark as the club aim to strengthen their bid to win the Premier League title. The Gunners have considerable set piece prowess and have now recruited another expert in the field.

Gabriel Martinelli came under intense fire for his antics involving Liverpool's Conor Bradley during Arsenal's 0-0 draw with the Reds

Arsenal manager Mikel Arteta warned that there weren’t many good signs about Piero Hincapié’s fitness ahead of Wednesday’s Carabao Cup semi-final against Chelsea in a typically vague injury update.