“The reality is that they don’t know what they are doing,” said Groves, 29, who defends the World Boxing Association super-middleweight crown in the semi-final of the World Boxing Super Series for The Muhammad Ali Trophy.
“Fine, Junior catches a certain section of the public with these Rocky-style training montage videos he’s putting out there, but Senior has lost the plot completely, lost his grip on reality when he describes what his son is capable of,” added Groves of Eubank, who has stepped up a division to 12st from middleweight, having been installed as the favourite by the bookmakers.
Groves, a 29-year-old Londoner and a year older than the challenger, continued: “There is lots with the Eubanks that I don’t understand. His dad has lost the plot, which he has done several times over the years. People have just bought into what they put out there, that he’s the coming force, with the training montages they put out on the internet – with his 98 punches in 11 seconds – and that will capture a certain section of the public’s imagination.