Enzo Maresca, the manager of Leicester City, has acknowledged that they recruited the striker despite being aware of his injury history.
Cannon only managed four senior appearances for Everton since graduating from their academy, however his brilliant loan spell at Preston North End led to huge interest in his signature this summer.
After netting eight goals in the second half of last season for the Lilywhites, a number of Championship clubs were battling it out to sign Cannon on loan.
For the whole of the transfer window, it appeared that he would return to Preston, but Leicester ultimately prevailed and decided to spend a hefty £7.5 million to buy him permanently.
However, Cannon is yet to make his debut for the Foxes and Maresca has now revealed exactly why.
Maresca added, “Just because it’s a long-term investment doesn’t mean we don’t need him now,” in a statement to BBC Radio Leicester.
“But we would rather be cautious and perform all necessary tests.
“We discovered a mistake when he signed. He isn’t even training with us right now, so I assume it will take a while.
“How long we still don’t know. He attended none of our training sessions.
According to reports, Cannon has a stress fracture in his back, which is said to heal in a minimum of six to eight weeks. This indicates that he might not act again until November or December.
Did Everton do well to earn £7.5m from Cannon’s exit?
It now seems pretty impressive that Everton were able to claim such a hefty fee for an inexperienced striker, especially given his lengthy injury.
However, Leicester clearly have enough firepower to keep them going until he returns and the Toffees could well regret selling him if he helps the club return to the Premier League.
He is clearly a huge talent and could well have been an important player at Goodison Park in the future, though at least Sean Dyche’s side included a sell-on clause in the deal.
