Key battles

Jamie Vardy v Calum Chambers

Vardy is the transfer target who turned Arsenal down, opting for a new four-year deal at Leicester instead of a three-year contract at, and a £22 million (S$39 million) move to, the Emirates. He scored three goals in two games against Arsenal last season. Chambers scored against Liverpool last Sunday: Problem is, he was in a defence that let in four.

Robert Huth v Alexis Sanchez

Huth is available after serving a three-match ban for pulling Manchester United's Marouane Fellaini's hair in May. Without him, newcomer Luis Hernandez looked less solid at Hull. Sanchez scored three times on his last trip to the King Power, but as a left winger. He started as a striker last week, partly because Theo Walcott does not want to.

Riyad Mahrez v Nacho Monreal

Mahrez was another to attract Arsenal's attention but signed a new four-year contract on Wednesday. Wenger said he had the "best numbers" - in terms of goals and assists - last season. The Algerian has the potential to give left-back Monreal a second successive harrowing outing after the tormenting he received from Sadio Mane last Sunday.