Brno - Spain's motorcycling Marquez brothers both sprayed bottles of champagne in celebration on Sunday after triumphing at the Czech Grand Prix with older brother and five-time MotoGP champion Marc admitting they share the same winning DNA.
Honda's Marc, 26, finished first in the elite MotoGP race at Brno to clinch his 50th career win, becoming only the fourth rider to so, and extended his advantage at the top of the drivers' standings.
Alex, three years younger, capitalised on his pole position by registering his fifth triumph of the season to stretch his lead as the No 1 rider in the second-tier Moto2 this season.
Sunday's double was the fourth time the brothers had won at the same Grand Prix weekend this season.
"At home we try and train together. We wake up with the same mentality with the same objective which is to win the championship," Marc said.
"They are really great moments."
Marc has five world championships to his name and is on course to clinch a fourth straight title with nine races of the campaign to go as he holds a 63-point lead over second-placed Andrea Dovizioso.
The younger sibling, who rides for Suzuki, has one world triumph in Moto3 back in 2014.
They both finished top of their respective standings that year, becoming the first pair of brothers do to same in the same campaign.
"Both of us give 100% and I'm really happy with my brother's win," Marc said.
Next season could see a Marquez derby at the top table of motor racing with Alex telling Spanish newspaper AS in June a chance to join his brother would be a 'dream'.
The 11th Grand Prix of the 19-race season takes place in Austria on August 11, a circuit where neither Marc nor Alex has won.