Ziyech’s Chelsea debut was delayed after he suffered a knee injury during a pre-season friendly in August.
But the Morocco international is now back to full fitness and has scored in his first two starts for Chelsea in the Premier League and the Champions League.
Ziyech was instrumental in Chelsea’s 3-0 victory over Burnley on Saturday and Ferdinand believes the midfielder will continue to be a focal point of Lampard’s attack.
‘I’m sure at home he’s [Lampard] had a bit of anxiety about wanting to make sure their front players, the ones he’s brought in, play well. That’s pressure,’ Ferdinand said on his YouTube channel Five.
‘Yes, he’s had a chequebook to be able to throw about. He’s gone out there, he’s executed and got players in but then the pressure mounts. Will the players do it?
‘I think Ziyech, out of all of them, has been the one he’s wanted to bring back most because he brings you that little bit of difference,
‘He brings you that little bit of guile. Havertz has got it but Ziyech is a player.
‘I saw him at Stamford Bridge last season destroy Chelsea, I saw him in the Champions League many times last season.
‘He’s the person who always looking for that little pass, that little bit of difference, he plays the hard pass, the risky pass that gets you the big reward.
‘Yes, he was man of the match at the weekend and Frank waxed lyrical about him after the game saying he was so pleased to have him back because he gives you something different in the team.
‘Chelsea are sixth in the league now after a bit of a stuttering start. They look like a team who are starting to find their feet. New signings always take time but Frank is obviously drilling them well on the training field and they are starting to click. A 3-0 win away at Burnley is not to be sniffed at.’