Everton goalkeeper Tim Howard has likened Marouane Fellaini to Blues legend Duncan Ferguson.
Fellaini was outstanding for victory over Manchester United on Monday.
American keeper Howard insisted: "It was the best here against them since Duncan.
"It was dominant - classy in a lot of ways but some of it was determination and real grit too.
"Duncan had the same make-up in terms of being able to dominate someone for 90 minutes. I was happy to be on the right end of it this time.
"United just couldn't cope with him.
"There's a certain point at which you say it's impossible to defend against him because he's so tall, and takes up such good positions you either have to come through the back of him and concede a foul, or stop him controlling it with his chest, which is hard.
"He was so fantastic for us on Monday and it allowed us to get up the park and play it up to him."