Barcelona coach Ernesto Valverde concedes getting Chelsea is a "hard draw" in the Champions League.
Barca and Chelsea will now meet in the round of 16.
"It's a hard draw for us but we knew that nothing was going to be easy because there were very good teams in the draw," Valverde said to Barça TV.
"Chelsea are the champions of the Premier League but we will play with enthusiasm because, although it will be difficult, it's a very nice tie for us and for the supporters.
"In that aspect, it's easy to motivate the players."
He added: "They're a strong team.
"Tactically, they're very good and also very physical.
"With Morata, they have in speed in attack, and Hazard is very good between the lines."