Red Bull's Sergio Perez continued his strong form with the fastest time in Azerbaijan Grand Prix first practice.
Perez, who won the last race in Monaco, was 0.127 seconds faster than Ferrari's Charles Leclerc, with the second Red Bull of Max Verstappen third.
Verstappen leads Leclerc by nine points in the drivers' championship and Mexican Perez a further six adrift.
Ferrari's Carlos Sainz was fourth, ahead of Alpine's Fernando Alonso and Lewis Hamilton's Mercedes.
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