McDonald believes he can add an Emile Heskey-like presence if picked for this month's friendly against Republic of Ireland and the June 2 clash with Brazil.
"When you're in that form you should be considered for England," McDonald said.
"I think the perception with his size is that he is just a big target man, but he is much more.
"He's more than a big lump and he does work at his game and is still a young man. He has gone to the top very quickly, but he is young and still learning."