Chelsea boss Frank Lampard admits they've drawn a tough Champions League group.

Chelsea, who return to the Champions League after a one-year absence, were placed in Group H during yesterday's draw, alongside 2018/19 semi-finalists - and Dutch champions - Ajax as well as Valencia and Lille.

"There is never an easy Champions League draw," said Lampard.

"Valencia, Lille and Ajax, no walkover at all. It is a strong group all the way through. Mestalla is a difficult ground to go to, if you are not at it or ready it is difficult."