ON APPLE & GOOGLE PLAYSaliba’s absence removes pace, composure and authority from the back line, while fitness concerns surrounding other defenders leave Arsenal vulnerable. Arsenal are searching for defensive reinforcementsAccording to The Athletic, Arsenal are exploring the market for another defender alongside their expensive moves for Guimarães and Vinícius. John Stones has joined Inter Milan after attracting interest from Arsenal and Chelsea, removing an experienced free-agent option from the shortlist. Arsenal have also been linked with Ezri Konsa, but Aston Villa’s strong negotiating position would make that deal expensive. Guimarães and Vinícius would raise the ceiling of an already excellent squad, but failing to protect the defence could undermine those investments.