Arsenal are unbeaten in seven games at home to Manchester United and have won the last four fixtures between the FA Cup's two most successful clubs.

United won their 13th last year to leave them one behind Arsenal, trophyless since they last hoisted the FA Cup in 2020. There has to be a winner in today's third round tie now that replays have been scrapped.

Ruben Amorim has confirmed that cup 'keeper Altay Bayindir will start and that Marcus Rashford is available after missing the 2-2 draw with Liverpool last week through illness.

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Here are five things to look out for at the Emirates Stadium:

Go one better than Anfield?

There have been murmurings that Mikel Arteta will heavily rotate his Arsenal XI today. Arsenal host Tottenham in the second north London derby of the season in three days and that is undoubtedly their priority.

United play a day later at home to Southampton and had a free midweek, whereas Arsenal were beaten 2-0 by Newcastle in the League Cup semi-final first leg. This tie has looked daunting for United since it was made at the start of last month and at one point may have been regarded as unwinnable.

The performance at Anfield last week has changed that.

Will Bayindir cope?

Amorim said on Friday he would pick his "best team". The following question was whether Andre Onana would start. No, Altay Bayindir will.

Far more troubling than that contradiction is Bayindir's selection. He cost United in last month's League Cup quarter-final at Tottenham, whose winner was scored directly from a corner. Arsenal are just about the best team at corners anyone has clapped eyes on.

Onana had a dismal December but he is United's best goalkeeper by a distance and made a vital save at 0-0 from Alexis Mac Allister at Anfield. It is illogical not to play him today.

Otherwise unchanged?

Had Amorim not confirmed Bayindir's selection then the assumption would have been that he would pick an unchanged United team for the first time. The draw at Anfield marked United's best performance of the season and they have not had a seven-day gap between games since August, with the exception of international fortnights.

If United had a capable striker then there would be logic in dropping Rasmus Hojlund. Matthijs de Ligt was at the scene of the crimes at Anfield but his height could be key against England's set-piece specialists. So Amorim could pick an unchanged outfield ten for the first time.,

End of the Emirates hoodoo?

United are winless in seven at Arsenal, where they have won memorably 3-1 on four occasions since the London club relocated from Highbury in 2006.

If United fans are seeking an omen, their last win at the Emirates was in a January FA Cup tie under a recently-appointed manager in 2019. Ole Gunnar Solskjaer was still the caretaker at that time and presided over his eighth win in his eighth game in charge.

Domestic season to effectively end?

If United go out at the third round stage, it will be only the third time since the mother of all upsets at Third Division Bournemouth when they were holders in 1984.

Defeat at Arsenal would also effectively signal the end of United's domestic season, save for ensuring safety. They are ten points adrift of Bournemouth, who occupy the seventh and final European competition qualifying spot.

The Europa League is already United's priority and that could become clearer on Sunday evening.