Arsenal captain Martin Odegaard expects "a really big test" when Nottingham Forest visit the Emirates Stadium this afternoon.
Off the back of a memorable victory against Liverpool at the City Ground last weekend, Forest can move level on points with 17th-placed Southampton by securing another unexpected win, this time against Mikel Arteta's side.
The Gunners have enjoyed a stellar start to the season and will regain top spot by securing all three points this afternoon. Nevertheless, Odegaard and his teammates are well aware of the challenge that Steve Cooper's men pose after being knocked out of the FA Cup by Forest last season.