Garbutt has extended his loan deal with Colchester United until the New Year.
The youngster said: "On a personal level, it's been very good. I've benefited from playing first-team football week-in, week-out. I've gained in confidence from each game that I've played.
"I'm enjoying my time at Colchester. They're giving me every opportunity to do what I do best on the football pitch."
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