"Sergio Perez will also be in the
Red Bull Racing car after the summer break because we now have races on the tracks where he was good last year and we are banking on stability," Marko wrote.
"He has repeatedly shown good performances in between, and he was also very fast in third place on Saturday at the last race weekend in Spa.
"Perez doesn't have to become faster, but more consistent and, given the alternatives, he is still our best solution."
"Reports that his continued involvement is due to Liberty Media's wish for him to drive in Mexico are not true," he said. "They certainly want him to contest his home race, but our choice of driver is not based on Liberty's intentions."