"We played against Nottingham Forest last season, so we know to expect a really big test today," explained Martin Odegaard while speaking to club media.
"I didn’t manage to watch their game against Liverpool last weekend, we were training at that time, but of course, it’s a great result for them, and tells us what we have to be ready for today.
"We know they have a lot of quality players. They have changed a lot since we played that game in the FA Cup, bringing in a lot of signings, so I expect it to be a very different team to the one we faced in January."
The Arsenal captain continued: "It looks like they have added a lot of individual quality to what they already had, and like every team in the Premier League, they have shown they can beat anybody.
"I played the whole of that FA Cup game last season away at Forest, and I was very impressed with them that day, so if they have improved even more since then, then for sure they will be a difficult test today.
"They will be highly motivated coming to the Emirates today, with the confidence of their result last weekend as well. It’s up to us to get back to winning ways in the league."
The Gunners have dropped one point behind Manchester City to second in the Premier League table.
The last few games haven't gone our way and beating Forest should be a priority at all costs.
