Boss believes in his young players ahead of Bristol trip.
Frankie is on standby for the Bristol game this weekend, with Magnus Okuonghae suspended after his midweek red card.
Joe has not been afraid to give youth a chance in the first team in his nearly two years in charge so far and has already given Sammie Szmodics game time in the midweek cup game at Charlton on Tuesday, along with having Jack Curtis and Frankie Kent on the bench.
Colchester United boss Joe Dunne has faith in his young players as the new season gets into full swing. "I have got great faith in my players here. That is getting tested already but that's not a bad thing.
"For example, on Tuesday night, we were happy to move Alex Gilbey back to centre back and he did a great job, as did Sammie when he came on.
And Joe said: "I have great confidence in my players.
"We feel we need to stand up for ourselves a bit more and then we might start to get those breaks."
The U's face a tough test this weekend as they go to Bristol City and a side that is hopeful of being in the promotion shake-up this season.
Ashton Gate is a always a vocal venue and boss Steve Cotterill has already called on his supporters to get right behind their side on Saturday.
And Joe added: "I think our players will thrive on that atmosphere and they should embrace and enjoy it.
"Bristol City is a fabulous club who get right behind their team and certainly let the away team know that they're there.
"He’ll want to see the club progress upwards and we have to be in the way of that ambition on Saturday."