Aston Martin's Lance Stroll collected a one-place grid drop for Sunday's race after stewards ruled the Canadian was to blame for the collision with Leclerc running into him at the hairpin.
Lando Norris put Formula One champions McLaren on pole position for the Monaco Grand Prix in track-record time on Saturday, with Ferrari's Charles Leclerc alongside on the front row for his home race.
Leclerc took pole in Monaco in 2021, but did not start the race due to a driveshaft failure, and 2022 when he ended up fourth.
Sahara Force India had a remarkable outing at the Circuit de Monaco as comeback man Adrian Sutil and teammate Paul di Resta finished a creditable fifth and ninth respectively in the crash-strewn Monaco Grand Prix on Sunday, earning the team 12 World Championship points.
Finnish team mate Kimi Raikkonen, who started on pole for the first time in nine years but lost the lead in the pitstops, made sure of a Ferrari one-two with Hamilton finishing seventh for Mercedes after starting 13th.
An angry Leclerc dropped to fourth after Ferrari called him in again for slicks and then told him, too late, to stay out after Sainz also pitted and went directly from wets to the dry tyres.
Germany's Nico Rosberg celebrated a surprise hat-trick of Monaco Grand Prix victories on Sunday after Mercedes blew championship-leading team mate Lewis Hamilton's chances with a needless pitstop.
Ricciardo, in blistering form since Thursday practice around the streets of the tiny Mediterranean principality, made sure of the top slot for his team's 250th race start with a quickest lap of one minute 10.810 seconds.
Formula One has lost another of its principals.