NEW footage showing a “disgusting act” fromKylian Mbappe could boost Arsenal's Champions League hopes.
Mbappe, plus Real Madrid team-matesVinicius Junior, Antonio Rudiger and Dani Ceballos, already face a Uefa probe and possible ban.

It follows Real's controversial celebrations after beating neighboursAtletico in the last 16.
AUefaEthics and Disciplinary Inspector is investigating claims of “indecent conduct” by the four superstars.
Any suspension for those key men would dramatically improve Arsenal‘s chances of seeing off Real in the quarter-finals.
The Gunners host the reigning Champions League kings in the firstleg on April 8, before visiting Spain for the return tie eight days later.
Now Mbappe could be in even hotterwater – after a clip emerged appearing to show him mimicking a lewd act in front of Atletico fans.
Fellow Real aces were jiggingwith delight towards the angry home fans, apparently taunting them over Atletico's shootout agony.
In the newly-shown video, the 26-year-old can be seen away from that pack of jubilant team-mates.
The France striker is captured mouthing somethingtowards the crowd – while making a rude had movement that certainly won't help his case with Uefa.

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He already stands accused of touching his genitals in a derogatory manner.
A man who posted the latest footage wrote: “Such a disgusting act from Mbappe.”
A tense atmosphere at theMetropolitano became worse after Atletico'sJulian Alvarez had a shootout penalty ruled by VAR.
And Atleti are understood to have formally complained to Uefa about behaviour ON the pitch.
Vinicius is accused of takingsix “shots”; at home supportersamidtwo separate confrontationsduring and after the game.
The Brazilian, 24, has long beenlong targeted by opposition fans and has been a regular victim of racist abuse.
Rudiger is alleged to have made a throat-slitting gesture to Atleti fans.
And Ceballos is also being investigated, over claims he made an obscene gesture with a clenched fist.
Meanwhile, ex-Chelseadefender Rudiger began a jubilant high-knee dance after hitting the winning spot-kick.
Many Real team-mates, including subs, joined in – as the bitter rivalry between the two clubs boiled over.