Publications
Partners
The candidates may be piling up, but Brendon Hartley is for now sidestepping rumours he is set to be replaced at Toro Rosso.
In recent days, McLaren junior Lando Norris was linked with the Red Bull-owned team, as New Zealander Hartley struggles.
But another candidate could be Daniil Kvyat, who after his departure from Toro Rosso has suddenly turned up in the Montreal paddock.
Kvyat in the running
"I've never been as well as now," the Russian is quoted as saying.
But sources indicate that Kvyat is merely in Canada as Ferrari's reserve driver, while Antonio Giovinazzi prepares for Le Mans.
READ: Hartley 'surprised' by Toro Rosso axe rumours
Yet another candidate is Robert Kubica.
"I have some insider information, let's say it like that. The manager of our team, who helps us with sponsors, used to work with Kubica. He says Robert is sparing no preparation for Formula One," Russian rally driver Aleksey Lukyanuk told SportFM.
But for now, Hartley says he is unfazed.
"This is the second weekend I've been asked about rumours. They're not worth commenting on. You always have them in F1.
I have a contract and I know the terms and I know what my speed and my abilities are. In Monaco I was not lucky in qualifying, but overall I had a good weekend.
I haven't talked to Franz Tost but honestly I'm totally focused on the weekend and don't see the point of discussing what you want to discuss," Hartley added.