Pole-sitter Russell led world championship leader Antonelli in the early stages before the pair almost made contact as they battled for position at the start of lap six.
World championship leader Antonelli felt he was forced off track by Russell as he tried to go around the outside of his team-mate at Turn 1, with the Italian having to bail out on his way into Turn 2.
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Antonelli, appearing to suffer from a loss of composure as he raged over team radio, then went off track again later in the lap and lost second to McLaren's Lando Norris.
The trio were then very closely matched for the remainder of the 23-lap contest, but ultimately remained in the same order, with Antonelli going off track again at the start of the final lap as he made one last attempt at passing the McLaren.
Russell's victory sees him gain two points on Antonelli, reducing the 19-year-old's lead at the top of the drivers' standings to 18 points going into Sunday's Grand Prix in Montreal, for which qualifying follows later on Saturday.
More to follow...
Sky Sports F1's Canadian GP schedule
Saturday May 23
8.10pm: Canadian GP Qualifying build-up*
9pm: CANADIAN GP QUALIFYING*
11pm: F1 Academy Race 2*
11.45pm: Ted's Qualifying Notebook*
Sunday May 24
3.40pm: F1 Academy Race 3
5pm: F2 Feature Race
7.30pm: Canadian GP build-up: Grand Prix Sunday*
9pm: THE CANADIAN GRAND PRIX*
11am: Canadian GP reaction: Chequered Flag*
12am: Ted's Notebook*
*Also on Sky Sports Main Event
Formula 1 is in Montreal for the Canadian Grand Prix and another Sprint weekend. Watch live on Sky Sports F1, with Sunday's race at 9pm. Stream Sky Sports with NOW - no contract, cancel anytime
