England's James Anderson Image Credit: AP

London: James Anderson bowled 20 overs for Lancashire second XI on Tuesday as he took another step towards proving his fitness for the fourth Ashes test against Australia.

England's leading wicket-taker, who is recuperating from a right calf injury, claimed 1-38 against Durham second XI at Chester on Tuesday.

The 37-year-old aggravated his calf injury in the Ashes opener at Edgbaston and missed the following two tests.

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As part of his rehabilitation programme, Anderson featured for Lancashire's second XI against Leicestershire's second string last week, picking up two wickets.

If Anderson comes through the four-day match at Chester unscathed he is expected to reclaim his spot in the England side for the fourth test at Old Trafford starting on Sept. 4.

England pulled off a dramatic one-wicket win at Headingley to level the series at 1-1. Holders Australia will retain the Ashes if they win either of the final two tests.