The Prime Minister is expected to use his annual address at the Labour Party conference to expand his attacks on Reform UK.
The scheme, which will begin operating in 2027, will deliver up to 8.5 million extra NHS appointments in its first three years, Labour claimed.
A clamour is already growing for the 47-year-old to stay on after masterminding a second successive triumph over the United States.
Nuno was appointed Hammers boss on Saturday, tasked with turning around a side that had started the Premier League season with four defeats in five.