Both Mercedes and Red Bull drivers have selected a maximum allocation of ten sets of ultra-soft tyres for the Monaco Grand Prix as the new compound gets its F1 race debut.

After the new softest compound made an immediate impression during winter testing at Circuit de Catalunya, the purple-banded tyre is fancied to be the prime compound at the Monte Carlo street track.

Every team has picked a healthy number of ultra-soft sets with Nico Rosberg, Lewis Hamilton, Daniel Ricciardo and Max Verstappen opting for the highest number allowed of 10 sets.

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Renault's Kevin Magnussen has also picked the most amount of ultra-softs available at 10, while both Ferrari and Haas drivers plus Jolyon Palmer have selected nine sets of the softest rubber.

One step back are Sauber with eight sets with McLaren, Force India and Toro Rosso selecting seven. Manor has selected the fewest of the new tyre with six boosting its red-banded soft allocation to five.