Portsmouth boss Harry Redknapp believes Thierry Henry is the best player in the world and admits he does not know how his team will cope with the striker's genius.
Pompey face the Gunners tomorrow at Fratton Park after the original fixture last month was called off because of a waterlogged pitch, which allowed Redknapp's side to continue their unbeaten run.
After 10 points from four matches Pompey have given themselves a chance of survival, although they will be underdogs against Arsenal, who Redknapp has an emotional attachment to after watching them as he grew up.
Redknapp said: 'For me, Henry is the best player in the world - in a side in fantastic form. I think they have a real chance of winning the Champions League.
'If he plays like he's played here before they could murder us. Don't ask me what we'll do to stop him. How do you deal with a genius?
'But I've been studying the videos of their games and if you stand off them and don't get the tackle they will slaughter you.
'Some people were surprised they left out Henry at Manchester United on Sunday but he's played a lot of games and Arsene has usually picked his best side this season for the games he thinks he can win.
'And they certainly want that fourth Champions League place next season.'
Despite his links to West Ham, where he managed for seven years until his departure in 2001, Redknapp watched Arsenal growing up.
'I used to go to Arsenal every week. My dad used to take me,' said Redknapp.
'We used to get on the North Bank about a quarter to one and there was a big manhole that stood you up about a foot higher than normal. Just right for a little lad like me.
'People think that because of where we lived in London's east end I was a West Ham fan, like most of the family.
'But my dad was a big Arsenal man and brought me up to support them. I still remember their players when I was a kid - Jack Kelsey, Dennis Evans, Derek Tapscott, Bill Dodgin, Len Wills, David Herd.
'Then there was Jimmy Bloomfield - a great player who later went to Leicester, Leyton Orient and West Ham - where I was a youngster at the time and actually played with him. He died too young, a fantastic man.
'When my dad died a couple of months ago, Arsenal sent a wreath to his funeral. I'll never forget that and could hardly believe that. I didn't tell anyone at Arsenal. Somebody must have picked up on it. Fantastic.'
But there will be no sentiment as Redknapp tries to drag his side out of the relegation zone with an unlikely win.
Postponing the original fixture worked for both teams, with Arsenal getting rest ahead of their Champions League second leg over Juventus, while Pompey maintained their momentum.
'We'll never know what would have happened if we played them on the scheduled day,' said Redknapp.
'But that's history now and we've got to employ the same positive attitude tomorrow.
'The great thing is it didn't stop us winning our third match on the spin against Fulham the following week and we were unlucky to get only a draw out of Blackburn last weekend.
'I've no doubt it is a three-horse race now to see who goes down after Birmingham, West Brom and ourselves all got a point last weekend.
'We ended up worse off of the three but we are in terrific form and although it is Arsenal coming tomorrow we are ready to have a real go at them.'
Noe Pamarot and Salif Diao have hamstring injuries but Redknapp does not have any other injury concerns.