Verstappen currently 1.29 on the inaugural Las Vegas track.
Las Vegas Grand Prix is still almost 2 weeks to go, so odds will come up next Monday, most likely.
Las Vegas will be an interesting race so far and while it's only 2 races to go, where Max is having his title already, at least Perez will be forced to push in case he wants to have a decent shot for a seat next year. It's know that RedBull will replace him, should Perez continue to struggle.
I can imagine, he'll do very well here. It's a street race, where Perez has done well, overally and his career is at stake, so he needs to show a good race.
Probably, Leclerc might be forced to take an engine penalty, if his engine is really damaged from Brazil's race, where he had a DNF on his formation lap. But no confirmation yet.