Gallery: The best photos from Day 3 of F1 testing

Check out our selection of the best photos from Barcelona as Formula 1 returns to action for pre-season testing.

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Sebastian Vettel, Ferrari signs autographs for the fans

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Photo by: Franco Nugnes

Valtteri Bottas, Mercedes-AMG F1W10

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Photo by: Franco Nugnes

Valtteri Bottas, Mercedes AMG F1 W10 rear detail

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Photo by: Giorgio Piola

Daniil Kvyat, Scuderia Toro Rosso STR14

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Photo by: Andy Hone / LAT Images

Scuderia Toro Rosso STR14 front wing detail

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Photo by: Mark Sutton / Sutton Images

Scuderia Toro Rosso STR14 nose detail

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Photo by: Mark Sutton / Sutton Images

Daniil Kvyat, Scuderia Toro Rosso STR14

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Photo by: Mark Sutton / Sutton Images

Scuderia Toro Rosso STR14 nose and front wing with sensors

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Photo by: Mark Sutton / Sutton Images

Daniil Kvyat, Scuderia Toro Rosso STR14

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Photo by: Andy Hone / LAT Images

Daniil Kvyat, Scuderia Toro Rosso STR14

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Photo by: Andy Hone / LAT Images

Red Bull Racing RB15 front wheel and aero sensors

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Photo by: Mark Sutton / Sutton Images

Photographers

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Photo by: Mark Sutton / Sutton Images

Kimi Raikkonen, Alfa Romeo Racing C38

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Photo by: Mark Sutton / Sutton Images

Sergio Perez, Racing Point F1 Team RP19

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Photo by: Joe Portlock / LAT Images

Sebastian Vettel, Ferrari SF90 with aero sensors

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Photo by: Joe Portlock / LAT Images

Pietro Fittipaldi, Haas VF-19

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Photo by: Joe Portlock / LAT Images

Kimi Raikkonen, Alfa Romeo Racing C38

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Photo by: Joe Portlock / LAT Images

Pierre Gasly, Red Bull Racing RB15, spins into the gravel

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Photo by: Glenn Dunbar / LAT Images

Pierre Gasly, Red Bull Racing RB15, spins into the gravel

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Photo by: Glenn Dunbar / LAT Images

Sebastian Vettel, Ferrari SF90

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Photo by: Mark Sutton / Sutton Images

Pietro Fittipaldi, Haas VF-19

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Photo by: Mark Sutton / Sutton Images

Pietro Fittipaldi, Haas VF-19

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Photo by: Mark Sutton / Sutton Images

George Russell, Williams FW42

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Photo by: Williams F1

George Russell, Williams FW42

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Photo by: Williams F1

George Russell, Williams FW42

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Photo by: Williams F1

Sergio Perez, Racing Point F1 Team RP19

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Photo by: Glenn Dunbar / LAT Images

Ferrari mechanics and screens

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Photo by: Mark Sutton / Sutton Images

Valtteri Bottas, Mercedes-AMG F1 W10

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Photo by: Zak Mauger / LAT Images

Daniil Kvyat, Scuderia Toro Rosso STR14

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Photo by: Carl Bingham / LAT Images

Sergio Perez, Racing Point F1 Team RP19

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Photo by: Zak Mauger / LAT Images

Williams Racing garage and screens

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Photo by: Mark Sutton / Sutton Images

Pietro Fittipaldi, Haas VF-19

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Photo by: Carl Bingham / LAT Images