Shearer wrote in The Sun: "I would give Ashley Young another chance on the left, although we need a big performance from him.
"So far he has been a disappointment and we need him to up his game in the final group match against Ukraine.
"It was a brilliant substitution by Roy Hodgson to bring on Walcott when he did against Sweden.
"Walcott tweaked his hamstring yesterday but he showed in the Sweden game the undoubted skill he has with a goal and an assist. It is just a shame we do not see it more consistently."