Mata wants Chelsea to become 1st team to hold both European cups
Rafa Benitez's European champions dropped down into the second-tier Europa League after failing to get out of their group.
The Blues start their Europa League campaign with a last-32 first-leg clash against Sparta Prague on February 14, and if they lift the trophy in the final on May 15, they will be the first European champs to hold both crowns, even if it is for just 10 days.
Mata took to Twitter after the draw on Thursday to let fans know the Blues are serious about the competition.
"We face Sparta Prague in #EuropaLeague," the Sun quoted Mata, as saying.
"The first step to reach our goal in this tournament: Become Champions!" he added.
Interim boss Benitez has also insisted he will take the competition seriously, even though reviving Chelsea's Premier League challenge is more important. (ANI)