Australia coach Darren Lehmann remains positive after Australia's 14-run loss to England at Trent Bridge.

Lehmann has told his top order batsmen to up their game in time for the second Test against England at Lord's starting on Thursday.

The tourists came close to a stunning win in the first Test at Trent Bridge before Ashes-holders England scraped home by 14 runs on Sunday to go 1-0 up in this five-match series.

Australia's tenth wicket pair were responsible for 228 runs at Trent Bridge, including a world record stand of 163 in the first innings that featured teenage debutant Ashton Agar's 98 the highest score by a Test No 11 after they had collapsed to 117 for nine.