Frank Lampard believes Chelsea have a huge task of their hands after drawing Atletico Madrid in the Champions League round of 16.
The Blues finished top of their Champions League group ahead of Sevilla, Rennes and Krasnodar.
Despite being in the seeded pot for Monday night's draw, Lampard's side drew last season's semi-finalists in Atleti.
Diego Simeone's outfit are currently second in La Liga and Lampard knows how tough the test will be when the two teams meet in February.
