Australia captain Tim Paine believes his side have seen Jofra Archer at his fastest - but admits the paceman will prove a threat.

Sussex’s Archer, pictured, is expected to make his much-anticipated Test debut for England at Lord’s today, fresh from a World Cup campaign in which he was the champions’ leading wicket-taker with 20 to his name.

The Barbados-born speedster can exceed 90mph but he is not an unknown quantity for Australia, with Paine pointing out most of his side’s batsmen have either faced him in the World Cup or in a Twenty20 franchise competition.

Paine said: “A lot of our guys have seen Jofra Archer or faced him which is a plus.

“It’s been in white-ball cricket but we’ve actually faced him in Australia where conditions suit fast bowling.

“We’ve seen him at his fastest, they know what to expect, they know how skilful he is and how good he is.

“Like most bowlers that play Test cricket there will be times where he’s going to be a real threat and we’re going to have to weather that.”

Former Sussex and England spinner Monty Panesar believes raw pace from Archer will not be enough to rattle the Aussies.

Panesar said: “He is an exciting player and there is a lot of noise around him. Everyone wants to see him play Test cricket.

“He has been in the white ball cricket and I’m sure he will definitely be bowling with his pace. The key will be if he can get some movement.

“That is going to be the key because Australia can play pace bowling very well. They need to get that ball moving.”