Eddie Jones does not expect to have Mako Vunipola available until England face Argentina or France in the Rugby World Cup pool stage.
Mako Vunipola's latest hamstring setback is not serious and he is set to be fit for England's Rugby World Cup campaign.
Mako Vunipola's return from injury was cut short, but England coach Eddie Jones is "cautiously optimistic" over the prop.
For the first time in over a year, George Ford and Owen Farrell will be in England's starting line-up when they face Ireland.
England's Rugby World Cup preparations have been hit by the news prop Mako Vunipola will be out for three months due to hamstring surgery.
Mako Vunipola's season is over after he suffered a torn hamstring in the European Champions Cup win over Leinster.
As two European heavyweights lock horns in the Champions Cup final, we look at the key battles that will decide Leinster versus Saracens.
Perhaps unsurprisingly, the five nominees for the European Player of the Year all turn out for Champions Cup finalists Leinster or Saracens.
Leinster will be led by the fit-again Johnny Sexton when they take on Toulouse in Sunday's European Champions Cup semi-final.
Mako Vunipola and Chris Ashton are replaced by Ben Moon and Jack Nowell in England's starting line-up to take on Wales.