Ricciardo is continuing to isolate in accordance with local regulations. Under these regulations, he will be released in time for next weekend's Formula 1 season-opening Gulf Air Bahrain Grand Prix.

McLaren Racing's team statement also revealed that Ricciardo is already beginning to feel better.

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Lando Norris will remain in the MCL36 for the final day of the official pre-season test in Bahrain on Saturday, which is live on Sky Sports F1.

"Better this week than next," Ricciardo said on his Twitter channel.

"Unfortunate to miss the test, but I'm starting to feel better. I'll stay isolated and just focus on next weekend.

"Big thanks to Lando and McLaren for the heavy lifting, I owe you some beers [milk for Lando]. Appreciate the well wishes from everyone."

During Friday's testing, Norris finished eighth fastest with Kevin Magnussen taking advantage of Haas' extra hour as he set the fastest time of the day.

Haas were granted the additional time on track after they missed the opening Thursday morning session due to travel delays.

In contrast to Haas' time, Norris' track time for McLaren was severely limited for the second day in succession. The team have been hindered by an issue with their brakes and are awaiting the delivery of revised parts from their UK factory.

Coverage of the final day of pre-season testing on Saturday starts at 6:50am on Sky Sports F1.