Brockbank, 18, is a former Carlisle youth player and earned plaudits for his display in the recent friendly with Gretna, scoring a goal.
He said: "Danny’s set us up this season to play out from the back with the full backs getting high and wide.
"Obviously, it worked tonight and we got in to score.
"I’m feeling good (about the season ahead), ready and confident for all of us.
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