Mr Albon, who grew up in Bures near Sudbury and went to Ipswich School, will be joining Red Bull Racing from the next race in Belgium.
Albon's recruitment by Red Bull at the end of last season was a surprise choice, and a salutary one for the British-Thai racer whose lack of funding in Formula 2 with DAMS in 2018 threatened his motorsport career.
Recently, Toro Rosso team boss Franz Tost played down Albon's chances of stepping up to Red Bull, arguing that the 23-year-old needed more experience. Gasly has not just been overshadowed by Max Verstappen at Red Bull: he has experienced a total eclipse.
Albon, the rookie who Marko had to negotiate to get out of his Formula E contract with Nissan in order for him to compete in Formula 1 this season, spent the first 12 races of the 21-race season driving for Scuderia Toro Rosso, the Red Bull Racing junior team.
Red Bull say they will "use the next nine races to evaluate Alex's performance" and make a "decision as to who will drive alongside Max in 2020".
Albon's strong performances ahead of the summer break coincided with two disappointing results for Gasly, who collided with Albon in Germany before retiring from the race and finished a distant sixth in Hungary on a day when teammate Verstappen won the race.
"The start wasn't great, the first lap wasn't great and we shouldn't be racing Saubers (the Alfa Romeo cars) and McLarens", he said.
Last month's German Grand Prix at Hockenheim was Albon's first wet F1 race and he now finds himself in a winning vehicle after just 12 grand prix starts.
"The problem is he's not in the mix at all", he added.
However, Kvyat's track record has been even better, with the young Russian outscoring his teammate by 11 points. The same age as Gasly, he has scored 16 of Toro Rosso's 43 points from 12 races. Gasly will return to Toro Rosso for the remainder of the year.