Purcell, whose major titles came at Wimbledon in 2022 and this year's US Open, said he had "unknowingly received" an intravenous infusion of vitamins which was above the 100ml limit allowed by Wada.

Surrounding care - including an infusion every four weeks and checking for side-effects - significantly adds to the bill.

Dr Evans told the trial his "opinion" was that Baby I "had been subjected to an infusion of air".

The $20bn will give the country "a critical infusion of support" as it defends itself "against an unprovoked war of aggression," Yellen said in a statement on Tuesday.

The infusion of new talent and ideas is a significant change from when Pennsylvania’s Three Mile Island disaster in 1979 and the Chernobyl meltdown in 1986 devastated the industry.