ARSENAL could be handed a HUGE boost in their quest to overcome Real Madrid in the Champions League quarter-finals.
It comes after Uefa have opened an investigation against Kylian Mbappe and three other Real stars.

Antonio Rudiger, Vinicius Junior and former Arsenal loanee Daniel Ceballos join Mbappe in facing disciplinary action.
A Uefa Ethics and Disciplinary Inspector has been appointed toinvestigate allegations of “indecent conduct” by all four players.
The incident occurred during Real's second leg last-16 victory against city rivals Atletico on March 12.
It is believed to be for their perceived involvement in goading the Atletico fans after Rudiger's winning penalty in the shootout.
Their punishment, if found guilty, is not yet known.
But IF they are banned, it could be a huge advantage for Arsenal.
The Gunners host the 15-time European champions in under a week on Tuesday 8, with the return leg the following Wednesday.
And Vinicius and Mbappe are joint-highest in club goals in the Champions League this season (seven goals apiece).
Madrid advanced to the quarterfinals in a controversial 4-2 shootout after Atletico won the second leg 1-0 to tie the aggregate score at 2-2.
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