The Tottenham winger is injured for this year's visit to the Emirates Stadium.
Indeed, the 26-year-old netted during a 1-1 draw at the Emirates last term and Tottenham will no doubt be pleased with a point as the away side once more.
Chadli went on to wish his team-mates luck, with the possibility of a memorable victory surely driving him and the rest of the squad on ahead of Sunday afternoon's crunch clash.
Can the Belgian's colleagues deliver without him?
The 26-year-old is injured for this season's trip to the Emirates, of course, but was somewhat out of form before he picked up his knock, meaning the extended break could do him good.
In his absence, Chadli knows his team-mates are capable of putting in a performance at Arsenal.
The likes of Christian Eriksen, Erik Lamela and Mousa Dembele are in form, while Mauricio Pochettino also has other options to turn to if his Tottenham side are tired after their Europa League exploits.
It should be a north London derby to remember - unless that's just jinxed it.