Joseph Yobo has hailed the work ethic of Everton teammate Yakubu Aiyegbeni.

The Nigeria captain told evertonTV: "I've been playing alongside Yakubu in the national side for quite some time now so I know his qualities and I have to say that since he has come here he is working harder and he has improved.

"He is doing really well - but I know his qualities as a natural finisher and he makes it look easy at times."

While Yakubu's all-round game may be improving, Yobo believes his goalscoring knack is something very special.

"The abilities he's got are natural," he declared. "You either have it or you don't and he is one of those that do have it."