Aberdeen manager Derek McInnes focused on his side producing their own best performance rather than worry about Sporting Lisbon's coronavirus crisis as they prepare for life without Scott McKenna.
Scotland defender McKenna's move south to Sky Bet Championship side Nottingham Forest was confirmed on Wednesday, as Aberdeen were travelling out to Portugal ahead of yesterday's Europa League tie.
Sporting had at least nine players missing because of positive Covid-19 tests, while manager Ruben Amorim also be absent because he is self-isolating.
Aberdeen's hopes of getting some late scouting were already scuppered when Sporting's scheduled domestic fixture against Gil Vicente was previously called off because of the outbreak.