The last time Silva faced Arsenal at the Emirates as a manager his Olympiacos side came from behind to produce a shock 3-2 win in the Champions League.
Arsenal are aiming to build on their second-placed finish in the Premier League last season.
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Wenger admits Arsenal are in a fight even to qualify for the Champions League but called for fans to stay behind his team when they face Hull at the Emirates Stadium tomorrow.
Wenger has faced pressure from a group of Arsenal supporters to step down following back-to-back defeats by Watford and Chelsea that effectively ended the club's title hopes this week.
He leads a small cadre of possible candidates to take over from Wenger, should Arsenal decide to end its 21-year relationship with the Frenchman at the end of the season.
It is not quite time for Arsenal to be concerned about the threat posed to us in Premier League games by those clubs fighting for survival, although our next opponents Hull City are now in the drop zone.
"It's never over", the Arsenal manager said.
The Italian is seen by many as Wenger's most likely successor, especially given the success of Antonio Conte at Chelsea this season.
"Add in the fact it is a lunchtime kick-off on a cold weekend at the start of half-term against modest opposition and the crowd could be 10,000 below capacity".
Merson also suggested the current Arsenal side are falling behind their local rivals Tottenham, as he suggested Alexis Sanchez was the only member of Wenger's line-up that would get into the current Spurs team.
Hull have kept two clean sheets in as many games in February, as many as they'd kept in their previous 26 Premier League games combined - they haven't kept three in a row in the PL since October 2008. Every season they put a run together, and they can do it.
Allegri is also seen as more of an in-game tactician than Wenger, who is often accused of being too set in his ways.
There's going to be a lot of anger on Saturday and the fans will be expecting the team to produce a performance.
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"I'm sure they'll come to Arsenal and try and do the same, so it's going to be hard but for us now, it's nearly now or never".