England cricketer Jimmy Anderson will miss the second Ashes Test against Australia at Lord's because of an injury.
England's record Test wicket-taker only managed to bowl four overs during the first match at Edgbaston before leaving the field due to tightness in his right calf muscle.
He will be reassessed on an ongoing basis regarding his availability for the rest of the series.
The England and Wales Cricket Board have released a statement revealing that an MRI scan had settled the matter.
"The MRI confirmed that Anderson has suffered a calf injury.
"As a result of the injury, he will commence a rehabilitation programme working with the England and Lancashire medical teams.
"Anderson will miss the second Test match, which starts at Lord's on Wednesday August 14. He will be reassessed on an ongoing basis regarding his availability for the rest of Specsavers Ashes series."
Former England captain Michael Vaughan thinks Anderson will be out until at least the fourth Test and feels it's a big boost to Australia, who lead the series 1-0.
"I can't see him playing too much of a role in this series," he said on BBC 5 Live's Tuffers and Vaughan Show.
"I can't see how they'll allow him to come back without playing at least a a couple of games first. You're looking at, if everything goes rosey, Old Trafford, but that would probably be a risk.
"My concern is you don't underestimate the psychological effect of Jimmy Anderson has on the England team, but also the positive effect it sends through the Australia team.
"For them to arrive next week and the week after to know they won't be facing Jimmy...that is monstrous."