Having scored plenty of goals for Spurs and England in the past, the 32-year-old seemed to question why Dick Advocaat is playing him on the wing.
The England forward made several appearances last season on the wings of a more central attacking player, and it is something that he is eager to resolve
Though the 32-year-old did see the benefits of it in order to build up match fitness, he will surely be hoping that the signing of Jeremain Lens from Dynamo Kyiv will enable him to return to a more traditional attacking role
“You want to play in your favourite position; the position you’ve been playing in for your whole career, Defoe told the Echo after Sunderland's loss to Sacramento Republic this week.
“I’ve never played on the left wing in my whole career. I’m not a left winger, I’m a striker."
Defoe had played the first half out wide, before Advocaat switched him up top as part of a 4-4-2.
And he agreed on the benefits of building up match fitness whatever position he would play in.
“Pre-season is about fitness," he added.
“You just want to see it as a start of things really.
“As players, you want to get through the pre-season and not pick up any injuries.
“But the most important thing is to be ready for that first game of the season against Leicester.”
Having signed from Toronto in the January transfer window, Defoe scored just four goals in nineteen matches for the Black Cats. However, his fellow forwards did little better, with none of his fellow forwards matching that number of goals in the same timeframe.
Defoe only started two of Advocaat's nine matches in charge of Sunderland last season up front, so he will likely be doing as much as possible to prove to the Dutchman that he should be the individual playing the number nine role, rather than anyone else.