London: England all-rounder Andrew Flintoff continued his comeback from a side strain with a quick fifty for Lancashire's second XI.
Coming in at No 4, he struck 32 runs in 40 minutes before lunch with six fours against Durham at Alderley Edge in north-west England.
After the break he reached fifty by belting a six out of the ground and then nearly broke a pavilion window with a well-struck four.
He was eventually out for 56, caught off Karl Turner.
Flintoff sustained his side problem ahead of England's first Test against New Zealand, ruling him out of the entire series, but he hopes to be fit for the forthcoming Test series against South Africa.
It is more than a year ago since the 30-year-old played the last of his 67 Tests, against Australia in Sydney.
For most of that time he has been sidelined with from Test duty because of an injured left ankle which has now been operated on four times.