
Arsenal boss Arsene Wenger has confirmed Eduardo will be sidelined for three weeks after sustaining a groin injury against Manchester United.
The Croatia international sustained the injury during a challenge with Manchester United defender Rio Ferdinand in the 1-0 Champions League semi-final first leg defeat.
Eduardo made his comeback from a broken fibula and dislocated ankle earlier this year but has suffered a number of niggling setbacks since the return.
French centre-back Mikael Silvestre also picked up a groin injury at Old Trafford and is expected to miss the return leg at Emirates Stadium.
Wenger said on Sky Sports News: "Eduardo has a groin problem and Silvestre as well.
"Eduardo is ruled out for three weeks. Silvestre we don't know - he will be short (for Tuesday)."
Wenger also confirmed that Dutch forward Robin van Persie will undergo a late fitness test ahead of the clash with United, while full-back Gael Clichy will be absent.
He added: "Van Persie we will assess very late, Tuesday morning or afternoon. Clichy is out."
Damn jialat, after that Birmingham incident... its been downhill for this dude.
arsenal youngster all injury prone. worse than old man

EDUARDO ... out for rest of the season
And gutted Gunners manager Arsene Wenger admitted: “The season is over for him. “Eduardo is like the guy who stands on the motorway and gets run down by the lorry coming up the wrong side. He is really distraught.”
The Croatian international, who only returned from his horrific double leg break in February, hurt his groin in a freak clash with Rio Ferdinand.
It happened when he came off the bench on Wednesday in the first leg of the Champions League semi-final at Manchester United.
United won the game 1-0 and there was more bad news for the London club after Eduardo had been assessed.
Wenger added: “Since he came back it seems every single little thing that can happen to him happens.
“We watched the incident again in slow motion and there was nothing he could do. “He had absolutely no chance to escape. He was on the ground and Rio fell on him.
“It was just a bad coincidence.”
I cant recall Rio falling on him...