Unai Emery is looking to get the better of the club he managed fro 2008 to 2012.
"We go to the final and have to go to win to go to the Champions League".
But according to Valencia star Dani Parejo, Emery once sent one of his players to sleep during a tactical meeting.
Speaking on The Debate, Ally McCoist says Unai Emery can afford to lose the Europa League final, but it's a different story for Maurizio Sarri.
As for Chelsea, their match finished 1-1 after regulation and went to extra time after ending 2-2 on aggregate.
Valencia coach Marcelino said his team can take inspiration from Liverpool's incredible Champions League turnaround against Barcelona as they bid to pull off a comeback of their own against Arsenal and reach the Europa League final.
"The Gunners have lost their last four away games in European competition in Spain and the hosts are a formidable outfit on home soil - although they did lose their 20-game unbeaten home record to Eibar in their last home game".
Chelsea last won the Europa League in 2013, a year after they had clinched the UEFA Champions League with victory over Bayern Munich.
And ahead of tonight's Europa League semifinal second-leg, he said: "Miguel Brito fell asleep during a talk!"
The Gunners, most importantly, kept their chances of Champions League qualification alive.
Emery also recognised that Arsenal have performed poorly in the Premier League of late, and sees the Europa League as a fine opportunity to make up for that form.
'I am very proud of the players, the supporters here with us.
When is the Europa League final?
"At any club like Arsenal or Valencia, titles have to be the objectives".