But here come the Mercedes drivers up the time sheets, with Russell and Antonelli now third and fourth. Alonso, astonishingly for Aston Martin, is fifth!
Another moment for Piastri at the final chicane. Given that's happened a few times now, that suggests a brake balance issue.
As the session resumes, the track remains fairly quiet. Among those on the track are Piastri and the Mercedes drivers.
To make up for lost time due to the red flag, the session will be extended by four minutes.
Obviously, these early times are hardly representative - for the most part - something that Norris will take solace from down in P17.
With no action on the track, now seems a good moment to run down the early positions.
- Verstappen
- Hadjar
- Piastri
- Lawson
- Antonelli
- Sainz
- Russell
- Albon
- Leclerc
- Hamilton
There it is. The red flag is shown so Lawson's car can be recovered.
Onboard replays show that Lawson remained in the same gear as his car sounded less than healthy. Hydraulics problem likely.
A moment for Lawson at Turn 4. He reports that he's lost power steering, and his car is stranded. That will almost certainly need a red flag to be recovered. He is currently fourth fastest.
A big one there for Verstappen, as he runs onto the narrow grass bank separating the track from the concrete wall at Turn 7. Grass and dirt fly up as the four-time champion gets away with one.
A huge lockup from Norris at the final chicane, as he slides into the runoff. In the race, he would need to return to the track around a bollard. Piastri follows his team-mate a few moments later.
Disaster for Alpine and Colapinto, as he loses throttle in the back straight on his first lap. He rolls into the pit, with just enough momentum to carry him to the waiting mechanics. With upgrades to evaluate, this is beyond bad news.
Sergio Perez puts in the first time of the weekend, but he's quickly bettered by drivers, including Oscar Piastri, with a 1:19.489s.
The drivers flood out onto the track with a mix of all three dry tyre compounds - the soft, medium, and hards.
The green light shows at the end of the pitlane, and we are go for the sole practice session of the weekend.
Here we go. The temperature is a warm enough 15.7C, with the track baked to 37.7C. Rain is not expected to be a consideration today, with the sun shining.
Seven minutes remain before we get underway with FP1. Time enough to get a drink, hope that dinner isn't going to take too much longer to cook, and then assume the position, ready for the action to begin.
There is a common feature of the Canadian weekend, with the wildlife often playing a part in the action. Here is a brief history of incidents involving Groundhogs.
Groundhog Day: Why Montreal’s resident rodents are a hazard at the F1 Canadian Grand Prix

It's pretty difficult to have missed that Max Verstappen was in action last weekend at the Nurburgring, and the drivers all had their own thoughts and opinions on the outing.
F1 drivers react to Max Verstappen's Nurburgring 24 Hours near-miss

Good afternoon and welcome to Practice 1 for the Canadian Grand Prix. With just the one session taking place before Sprint Qualifying later on this evening, there is no time for crashes, errors, or mechanical failures...we'll see how that plan goes.

