Even though Arsene Wenger will again rotate his squad, the Gunners are odds-on favourites to easily dispose of the Tractor Boys - who yesterday appointed Paul Jewell as successor to Roy Keane - and reach Wembley next month as they look to secure a first piece of silverware in six seasons.

However, Fabregas, who came off the bench on Saturday to net a last-minute penalty against Leeds which kept Arsenal in the FA Cup, is in no doubt the Suffolk club will be "motivated" to cause a major upset.

"Although Ipswich are a Championship team, that can make them even more dangerous," the Spain international said.

"Their motivation will be very high - these will be the biggest two games of their year.

"They will be desperate to beat us, they will want to show their strengths, and their motivation will be as high as possible.

"If we want to get through we will have to match that motivation, if not raise it further."

Fabregas could again be on the bench tomorrow night, with Wenger keen to keep his players fresh for the challenges ahead, which continue to come thick and fast - with a trip to relegation-battlers West Ham on Saturday evening swiftly followed by their FA Cup third-round replay at Elland Road.

Wojciech Szczesny looks set for another start in goal, with former number one Manuel Almunia now understood to be on the verge of a transfer to Galatasaray.

Young Poland stopper Szczesny - who had a productive loan spell with Brentford last season - has impressed in his outings so far, which included a Barclays Premier League clash at Old Trafford.

The 20-year-old, though, also urged against complacency tomorrow.

"The thing about the cups is that you can play a struggling team who are having a fantastic run in the competition," said Szczesny.

"It is a bit like my friends at Brentford earlier this season - they were having problems in League One, but they did well in the Carling Cup and beat Everton.

"The cup is always different in nature.

"You know that teams likes Ipswich will have a big buzz, they will go for it.

"They will be good games and we just need to make sure that we win them."

Much has been made of Arsenal's trophy drought since lifting the FA Cup at the Millennium Stadium in 2005.

Wenger, though, insists his team will focus only on the job in hand tomorrow.

"That we have not won a trophy for five years will not have a big influence on the match against Ipswich," the Arsenal manager said.

"What will have a big influence on us is that we are two games away from the final, and we want to go there.

"We will be highly motivated to do it.

"We will go to Ipswich to do the job well and to turn up with a better performance than on Saturday."

Arsenal have some worries in defence, as full-back Bacary Sagna is suspended after his red card against Manchester City and Sebastien Squillaci struggling with a hamstring problem.

Reserve-team captain Ignasi Miquel, 18, was called up into the squad for the FA Cup tie against Leeds and could feature again tomorrow.

Thomas Vermaelen is still not yet match fit and Wenger accepts should Squillaci's injury prove serious, then he would have to move in quickly to bring in cover, with Bolton's Gary Cahill and Werder Bremen stopper Per Mertesacker both reported targets.

However, Arsenal chairman Peter Hill-Wood has confirmed there is no chance Thierry Henry will re-sign for the Gunners after the former skipper returned to train at the club as he gets fit for the new Major League Soccer season with New York Red Bulls.