Norris moves up to eighth for McLaren. It's been a lacklustre test for the Woking oufit, with only 18 laps on the board this afternoon.
Leclerc, Sainz, Russell, Alonso, Perez, Hamilton, Drugovich, Gasly, Albon and Hulkenberg.
Another low fuel run from the Spaniard on the C4 tyres to move up to fourth, 0.4s off Leclerc.
The seven-time champion slots into fifth, just over 0.9s away from Leclerc's top time - which was on the softer C4 tyre.
The handling of the Mercedes looked better than it has been so far this test.
Sainz finds more time but he can't topple his teammate. 0.012s between the two Ferraris.
Alonso also improves on the C3 tyre, 0.9s off the pace now.
Hamilton goes sixth on the C3s, 1.1s down on Leclerc.
Sainz slots in behind his teammate with a lap on the C4 tyres - 0.138s between the two Ferrari drivers.
Ocon moves into 10th on the C3s, 2.3s off Leclerc's top time from earlier.
Leclerc, Russell, Perez, Drugovich, Alonso, Sainz, Gasly, Albon, Hulkenberg and Ocon.
Reports emerging in the German media that AlphaTauri could be up for sale.
Albon, Alonso Magnussen and Tsunoda are out on track currently.
"They look like they're not too far away. Fernando in particular looks very competitive."
After an earlier engine issue, Alfa have done speedy work to get Bottas back out there.
Alonso slots into seventh, 2.1s down on Leclerc's top time.
Perez moves into third on the C3s, 0.690s down on Leclerc's top time from earlier.
Hamilton continues on his race run, running down in 16th.
Alonso takes to the track for the first time this afternoon.
"When we are able to put everything together, the pace is there. And when we are not, the pace is not there."
Magnussen moves up to ninth ahead of Sainz with his latest lap time, a 1m34.802s for the Haas driver.
He moves up to ninth for Ferrari on the C3s, 4.3s off teammate Leclerc.