Pakistan paceman Mohammad Amir is fully fit for the first Test against England at Lord's.

Amir has been struggling with what was described as a "chronic" knee injury and spent time off the field during the Test victory over Ireland.

The left-arm quick missed the tourists' two-day warm-up match against Leicestershire, but he is set to be named in the side for a series-opener against Joe Root's side - which starts on Thursday.

Pakistan head coach Mickey Arthur said: "He's perfect, 100 per cent. He's fine and ready to go.

"We just sat him out that [Leicestershire game] because it was his rotation. [Mohammad] Abbas sat out the first game, Hasan [Ali] sat out the second game so he sat out the third."

Arthur said Pakistan are confident they can win the two-match series.

The South African added: "Of course we can. We haven't come here not to win. It is a changing room full of very skilled cricketers. Young, fearless cricketers.

"Guys that don't fear failure. They are intelligent, a skilful bunch of cricketers and if we get the breaks and things go our way we'll certainly put England under pressure."