But Sharp, who is second only to Dixie Dean in terms of Everton goals scored (160 in 447 matches), reckons there is much more to the former Sheffield United trainee's game.

"When you look at the kind of striker he is, England have Harry Kane and there is not a lot after that," Sharp told the PA news agency.

"Dominic gives you something else and the fact he has got a fantastic spring in the air, he gets unbelievable height, they can use to their advantage.

"Harry Kane is in possession of the jersey now and rightly so but Dominic will push him all the way.

"He has to make a start somewhere and he knows himself Harry Kane is in possession of that shirt – and quite rightly so – but Gareth Southgate might change his tactics and go two up front, you never know.

"But Dominic will go there knowing what an opportunity it is for him in these two weeks to stake a claim for Harry Kane's shirt if he gets injured.

"But it would be good to have a back-up for Harry and Dominic can certainly do that.

"But to do that he has to reproduce the form he has shown at Everton, where we are just delighted he has made that transition from being a player who was a good player who never got the goals and is now becoming a good player who is scoring the goals."

Scoring Premier League goals is never a guarantee of success at international level as opportunities to play regularly are limited and chances on the pitch are often even more remote.

Sharp himself was a victim of the competition for places up front for Scotland, scoring just once in only 12 appearances between 1985 and 1988, despite being a two-time league champion with Everton during that period.

He believes the modern game affords slightly more openings and believes that could help Calvert-Lewin seize his chance.

"In my situation I struggled to play, I was in squads but didn't really get the opportunity to play regularly," he added.

"The same applies to Dominic but if he replaces or plays alongside Kane he will improve.

"He has done it with the under-21s but it is not as if he is in European competitions, the Champions League, year in year out, but hopefully that is something he will get in the future.

"He will find it tougher but some people adapt to it very quickly and I don't think he will be fearful.

"International football is different, there aren't as many chances. It is a big step up to the senior team but hopefully he will be able to do that – he thoroughly deserves it."