Wickham wants to impress Paolo Di Canio on the training field and prove he can make the grade with the Black Cats.
Wickham told the Sunderland Echo: “Obviously the main aim for the season is to try to establish myself in the first-team this year.
“There’s good competition up front because we’ve got a number of good strikers at the club now.
“But hopefully I can just get my head down, work as hard as I can and make sure I do everything right personally.
“Hopefully then, the manager will recognise it.”