Monaco Grand Prix qualifying Daniel Ricciardo's Red Bull
Ricciardo put his Red Bull on pole in 2016 only to lose the race to Lewis Hamilton after a fatal mistake by his pit crew.
The Australian has struggled so far in 2017 with the car but recorded his first podium of the year last time out, finishing third at the Spanish Grand Prix.
However, the Red Bull has had multiple problems with brakes in 2017 and Ricciardo was force to pull out of the Saturday morning practice session.
"It's a different issue to what we've had previously which was within the brake drum itself," team boss Christian Horner told Sky Sports.
"It's not ideal for Daniel having a pedal go wrong at Turn One confidence-wise.
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"He'll have quite a few laps in Q1 to get his feeling up and his rhythm back."
Red Bull believe they have an opportunity to leap-frog Mercedes on the grid at Monaco, where qualifying is so crucial on a narrow track where overtaking is near-impossible.
Lewis Hamilton was fastest in Free Practice 1 but he and Valtteri Bottas finished eight and 10th in the afternoon session and Horner is confident in his chance of qualifying ahead of the defending World Constructors' Champions.
"Ferrari look in great shape here" Horner added.
"The car is pretty balanced and Sebastian [Vettel's] confidence is sky-high and Kimi [Raikkonen] is looking pretty handy too.
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"Mercedes looked vulnerable on Thursday and again this morning.
"If we can get it together and maybe do a perfect lap, the second row of the grid might be achievable for us today.
"That's what we're going to go all out for."